Rahul D Sarker: Marketing & RevOps Tools

co.rahuldsarker由 rahuldsarker.co 發布官方發布者v1.3.0更新於 Oct 24, 2026

116 marketing, RevOps and SaaS calculators with benchmarks, guided reviews, content search, booking.

已驗證Streamable HTTP可網頁執行網頁搜尋與抓取資料與分析商業與電商

概覽

AI 產生的概覽

顧問 Rahul D Sarker 提供的行銷與 RevOps 計算器套件,附帶站點內容搜尋與預約通話功能。

可以做什麼
  • 搜尋並閱讀站點上的文章、指南與客戶案例,回傳可引用的連結
  • 執行廣告與獲客計算:ROAS、ACOS、LTV/CAC、CPL/CPA、MQL 數量、廣告浪費、CRM 投資報酬
  • 模擬付費媒體:預算分配、CPM 季節性、素材疲勞、頻次風險、曝光比重、再行銷與相似受眾池、UTM 標記
  • 模擬 SaaS 與財務指標:ARR 倍數、MRR 轉 ARR、魔法數字、擴充收入、現金跑道、燒錢率、價格彈性、TAM/SAM/SOM
  • 評估策略與契合度:PMF 評分、ICE 優先順序、品牌與成效預算劃分、全職與兼職 CMO 比較
  • 查詢免費通話的空檔並取得預約連結
適用情境
適合在規劃廣告活動、預算或成長策略時,快速取得行銷、RevOps 與 SaaS 財務估算及基準參考;也適合查找並引用作者的文章,或預約通話。
執行需求
遠端 streamable HTTP 端點,位於 rahuldsarker.co;未宣告驗證、環境變數或請求標頭。需要網路存取。
安裝前請注意
計算結果依所填輸入與站點自帶的基準推算,屬估算值,並非即時廣告或 CRM 資料。預約連結會開啟站點表單,須由本人確認預約。內容搜尋與閱讀回傳的是作者站點的連結。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 Rahul D Sarker: Marketing & RevOps Tools,將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable,透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式,或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南,先向你展示發布者、端點和登入方式,經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/co.rahuldsarker%2Fgrowth-tools/install.md,並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前,先告訴我它的發布者、端點和登入方式,等我確認。不要把 API 金鑰寫進命令或我會提交的檔案;問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "rahul-d-sarker-marketing-revops-tools": {
      "type": "http",
      "url": "https://rahuldsarker.co/api/mcp"
    }
  }
}

工具

124

search_content

Search Rahul D Sarker's articles, guides and case studies

Search rahuldsarker.co for articles, long-form guides and client case studies on fractional CMO work, revenue operations, attribution, server-side tracking, performance marketing, CRM and AI marketing. Returns titles, summaries and links to cite. Use read_content to get the full text of a result.

輸入參數typelimitquery必填

read_content

Read an article or case study in full

Get the full text of one rahuldsarker.co article or case study, by its slug or URL (from search_content), so you can quote it accurately. Always cite the returned link.

輸入參數slug必填

check_availability

Check Rahul D Sarker's open call times

List open times for a free call with Rahul D Sarker (fractional CMO and RevOps consultant), live from his calendar. Each time comes with a link that opens the booking form with that time selected; the person confirms and books on the site. Use when someone wants to talk to Rahul, get help with their marketing or RevOps, or book a consultation.

輸入參數daystimezonemeetingType

roas_calculator

ROAS & Break-even ROAS Calculator

Calculate ROAS, ACOS, break-even ROAS, and profit from ad revenue, ad spend, and gross margin. See the full version at https://rahuldsarker.co/calculators/roas

輸入參數spend必填revenue必填currencymarginPct必填

ltv_cac_calculator

LTV : CAC Ratio Calculator

Calculate customer LTV, CAC, the LTV:CAC ratio, and CAC payback period. See the full version at https://rahuldsarker.co/calculators/cac-ltv

輸入參數segmentcurrencymonthlyArpa必填newCustomers必填grossMarginPct必填monthlyChurnPct必填salesAndMarketingSpend必填

ad_spend_waste_calculator

Ad Spend Waste Calculator

Estimate how much monthly ad budget leaks to fraud and tracking/attribution waste. See the full version at https://rahuldsarker.co/calculators/ad-spend-waste-calculator

輸入參數currencyfraudPct必填leakagePct必填monthlySpend必填

crm_roi_calculator

CRM ROI Calculator

Weigh a CRM subscription and implementation cost against the win-rate lift it buys. See the full version at https://rahuldsarker.co/calculators/crm-roi-calculator

輸入參數reps必填currencyannualCost必填avgDealValue必填winRateLiftPct必填dealsPerRepPerYear必填implementationCost必填

mql_calculator

MQL Calculator

Turn traffic and conversion rates into MQL volume, cost per lead, and cost per MQL. See the full version at https://rahuldsarker.co/calculators/mql-calculator

輸入參數currencymqlRatePct必填monthlySpend必填monthlyVisitors必填leadConversionPct必填

arr_multiple_calculator

ARR Multiple Calculator

Apply conservative, market, premium, and custom ARR multiples to see the valuation range they imply. See the full version at https://rahuldsarker.co/calculators/arr-multiple-calculator

輸入參數arr必填currencycustomMultiplemarketMultiple必填premiumMultiple必填conservativeMultiple必填

mrr_to_arr_calculator

MRR to ARR Calculator

Annualize MRR into ARR, with an optional 12-month projection from expected net-new monthly revenue. See the full version at https://rahuldsarker.co/calculators/mrr-to-arr-calculator

輸入參數mrr必填currencymonthlyChurnAndContractionmonthlyExpansionAndNewBusiness

saas_magic_number_calculator

SaaS Magic Number Calculator

Measure how efficiently sales and marketing spend turns into new ARR. See the full version at https://rahuldsarker.co/calculators/saas-magic-number-calculator

輸入參數currencypriorArr必填currentArr必填priorPeriodSalesAndMarketingSpend必填

cpl_cpa_calculator

CPL / CPA Calculator

Calculate cost per lead, expected customers, and cost per acquisition from spend, leads, and a lead-to-customer conversion rate. See the full version at https://rahuldsarker.co/calculators/cpl-cpa

輸入參數leads必填spend必填convPct必填currency

roas_to_mer_converter

ROAS to MER Converter

Compare a platform-reported ROAS against your true blended Marketing Efficiency Ratio (MER) to see how much pixels over-claim. See the full version at https://rahuldsarker.co/calculators/roas-to-mer-converter

輸入參數currencytotalSpend必填platformRoas必填totalRevenue必填

ppc_click_volume_predictor

PPC Click Volume Predictor

Predict monthly clicks, conversions, and effective CPA from budget, CPC, and conversion rate, and check whether volume clears the ~50 weekly conversions platforms need to exit learning. See the full version at https://rahuldsarker.co/calculators/ppc-click-volume-predictor

輸入參數cpc必填budget必填currencyconvRatePct必填

ad_creative_fatigue_forecaster

Ad Creative Fatigue Forecaster

Forecast how many days until an ad audience hits its fatigue frequency ceiling, and the date to have fresh creative ready. See the full version at https://rahuldsarker.co/calculators/ad-creative-fatigue-forecaster

輸入參數freqCap必填audience必填currencydailyImpressions必填

cpa_to_cac_scalability_matrix

CPA to CAC Scalability Matrix

Project how CPA/CAC inflates as you double and triple ad spend, given a per-doubling decay rate. See the full version at https://rahuldsarker.co/calculators/cpa-to-cac-scalability-matrix

輸入參數cpa必填spend必填currencydecayPct必填

retargeting_pool_size_estimator

Retargeting Pool Size Estimator

Estimate the addressable retargeting pool from monthly visitors, window, and match rate, plus the budget needed to hit a target weekly frequency. See the full version at https://rahuldsarker.co/calculators/retargeting-pool-size-estimator

輸入參數cpm必填currencyvisitors必填targetFreq必填windowDays必填matchRatePct必填

performance_marketing_margin_protector

Performance Marketing Margin Protector

Calculate the break-even and maximum CPA that protect a target profit margin, and check current CPA against that ceiling. See the full version at https://rahuldsarker.co/calculators/performance-marketing-margin-protector

輸入參數aov必填currencycurrentCpa必填grossMarginPct必填targetProfitPct必填

impression_share_opportunity_matrix

Impression Share Opportunity Matrix

Estimate missed conversions and revenue from operating below 100% impression share on a search campaign. See the full version at https://rahuldsarker.co/calculators/impression-share-opportunity-matrix

輸入參數currencyconversions必填impressionSharePct必填valuePerConversion必填

cross_channel_ad_spend_allocator

Cross-Channel Ad Spend Allocator

Suggest a starting Google/Meta/LinkedIn budget split based on total budget and average contract value. See the full version at https://rahuldsarker.co/calculators/cross-channel-ad-spend-allocator

輸入參數acv必填budget必填currency

linkedin_ad_cost_threshold_calculator

LinkedIn Ad Cost Threshold Calculator

Calculate implied CAC from LinkedIn CPC, landing conversion, and close rate, and check it against the maximum CAC a contract can fund. See the full version at https://rahuldsarker.co/calculators/linkedin-ad-cost-threshold-calculator

輸入參數cpc必填currencycloseRatePct必填contractValue必填grossMarginPct必填landingConvPct必填

seasonal_ad_cpm_predictor

Seasonal Ad CPM Predictor

Project CPM and reach impact for a given season (back-to-school, Black Friday, Q4, January) from a baseline CPM. See the full version at https://rahuldsarker.co/calculators/seasonal-ad-cpm-predictor

輸入參數season必填baseCpm必填currencymonthlyBudget必填

micro_budget_ad_feasibility_checker

Micro-Budget Ad Feasibility Checker

Check whether a small daily ad budget can generate the ~50 weekly conversions platforms typically need to exit the learning phase. See the full version at https://rahuldsarker.co/calculators/micro-budget-ad-feasibility-checker

輸入參數estCpa必填currencydailyBudget必填

google_search_impression_share_value_estimator

Google Search Impression Share Value Estimator

Estimate missed clicks, conversions, and revenue from operating below 100% search impression share. See the full version at https://rahuldsarker.co/calculators/impression-share-opportunity-matrix

輸入參數clicks必填currencyconvRatePct必填impressionSharePct必填valuePerConversion必填

lookalike_audience_pool_calculator

Lookalike Audience Pool Calculator

Estimate the addressable pool from a lookalike percentage and market population, and grade seed audience quality. See the full version at https://rahuldsarker.co/calculators/lookalike-audience-pool-calculator

輸入參數seed必填currencypopulation必填lookalikePct必填

ad_frequency_risk_checker

Ad Frequency Risk Checker

Calculate average ad frequency from impressions and reach, and flag whether it is healthy, caution, or fatigue territory. See the full version at https://rahuldsarker.co/calculators/ad-frequency-risk-checker

輸入參數reach必填currencyimpressions必填

landing_page_vs_ad_match_quality_auditor

Landing Page vs. Ad Match Quality Auditor

Score message-match continuity between an ad and its landing page across five weighted criteria (headline, keyword, offer, CTA, visuals). See the full version at https://rahuldsarker.co/calculators/landing-page-vs-ad-match-quality-auditor

輸入參數cta必填offer必填visual必填keyword必填currencyheadline必填

utm_generator_and_validation_helper

UTM Generator & Validation Helper

Generate a cleaned, encoded UTM-tagged URL from source, medium, campaign, term, and content, and flag common tagging errors. See the full version at https://rahuldsarker.co/calculators/utm-generator-and-validation-helper

輸入參數termmedium必填source必填baseUrl必填contentcampaign必填currency

paid_search_intent_tier_grader

Paid Search Intent Tier Grader

Grade a list of search keywords into transactional, commercial, or informational intent tiers, and flag the wasted-intent share. See the full version at https://rahuldsarker.co/calculators/paid-search-intent-tier-grader

輸入參數currencykeywords必填

creative_testing_duration_forecaster

Creative Testing Duration Forecaster

Forecast how many days an ad creative test needs to reach a sound sample size, from daily spend, expected CPA, variant count, and conversions needed per variant. See the full version at https://rahuldsarker.co/calculators/creative-testing-duration-forecaster

輸入參數cpa必填currencyvariants必填dailySpend必填convPerVariant必填

post_ios14_blended_attribution_modeler

Post-iOS14 Blended Attribution Modeler

Compare summed platform-claimed revenue against actual backend revenue to quantify over-reporting and the true blended ROAS. See the full version at https://rahuldsarker.co/calculators/post-ios14-blended-attribution-modeler

輸入參數adSpend必填currencyactualRevenue必填platformRevenue必填

in_house_vs_fractional_cmo

In-House vs Fractional CMO Calculator

Compare the loaded annual cost of a full-time CMO hire against a fractional CMO retainer, including the ramp-up cost before a full-time hire makes impact. See the full version at https://rahuldsarker.co/calculators/in-house-vs-fractional-cmo

輸入參數salary必填currencyloadedPct必填rampMonths必填recruiting必填fractionalMonthly必填

growth_runway_extension_simulator

Growth Runway Extension Simulator

See how much cash runway a cut to gross burn buys you, given current cash, burn, and revenue. See the full version at https://rahuldsarker.co/calculators/growth-runway-extension-simulator

輸入參數cash必填revenue必填currencygrossBurn必填burnReductionPct必填

total_addressable_market_estimator

Total Addressable Market (TAM/SAM/SOM) Estimator

Build a bottom-up TAM, SAM, and SOM from company counts, reachable share, ACV, and obtainable market share. See the full version at https://rahuldsarker.co/calculators/total-addressable-market-estimator

輸入參數acv必填currencycompanies必填reachablePct必填targetSharePct必填

brand_vs_performance_budget_allocator

Brand vs Performance Budget Allocator

Split a marketing budget between brand and performance spend based on company stage, using the Binet & Field long/short research as a directional guide. See the full version at https://rahuldsarker.co/calculators/brand-vs-performance-budget-allocator

輸入參數stage必填budget必填currency

product_market_fit_scoring_grader

Product-Market Fit Scoring Grader

Score product-market fit signals (the "very disappointed" test, retention, organic pull, NPS) into a weighted 0-100 PMF score and scale-readiness verdict. See the full version at https://rahuldsarker.co/calculators/product-market-fit-scoring-grader

輸入參數nps必填organic必填currencyretention必填disappointed必填

customer_expansion_revenue_matrix

Customer Expansion Revenue Matrix

Compound net monthly expansion revenue (upsell + cross-sell minus contraction) forward 1, 2, and 3 years from current ARR, with no new logos. See the full version at https://rahuldsarker.co/calculators/customer-expansion-revenue-matrix

輸入參數arr必填currencymonthlyExpansionPct必填

growth_strategy_prioritization_tool

Growth Strategy Prioritization Tool (ICE Scoring)

Rank growth ideas by ICE score (Impact, Confidence, Ease averaged, each scored 1-10) to decide what to run next. See the full version at https://rahuldsarker.co/calculators/growth-strategy-prioritization-tool

輸入參數ideas必填currency

pricing_elasticity_sandbox

Pricing Elasticity Sandbox

Model how a price change affects volume, revenue, and gross profit given a price elasticity of demand. See the full version at https://rahuldsarker.co/calculators/pricing-elasticity-sandbox

輸入參數price必填volume必填currencyunitCost必填elasticity必填priceChangePct必填

burn_rate_optimization_forecaster

Burn Rate Optimization Forecaster

Simulate month by month, at a given revenue growth rate and gross margin, how many months until gross profit covers fixed burn, and the cash needed to bridge the gap. See the full version at https://rahuldsarker.co/calculators/burn-rate-optimization-forecaster

輸入參數revenue必填currencyfixedBurn必填growthRatePct必填grossMarginPct必填

marketing_agency_pitch_bullshit_detector

Marketing Agency Pitch Bullshit Detector

Score an agency pitch on whether it's grounded in real, verifiable outcomes or dressed-up vanity metrics and vague promises. Answer 6 checks and get a credibility score, a BS meter, and a verdict before you sign anything. See the full version at https://rahuldsarker.co/calculators/marketing-agency-pitch-bullshit-detector

輸入參數currencypipeline必填ownership必填reporting必填guarantees必填references必填attribution必填

competitor_ad_spend_benchmarker

Competitor Ad Spend Benchmarker

Estimate a competitor's ad spend from share-of-voice data, assuming spend maps roughly to share of voice within the same auction. See the full version at https://rahuldsarker.co/calculators/competitor-ad-spend-benchmarker

輸入參數currencyyourSpend必填yourSovPct必填competitorSovPct必填

ltv_growth_multiplier_simulator

LTV Growth Multiplier Simulator

Show how much gross-margin LTV grows when monthly churn improves, using LTV = ARPA x gross margin / monthly churn. See the full version at https://rahuldsarker.co/calculators/ltv-growth-multiplier-simulator

輸入參數arpa必填currencygrossMarginPct必填currentChurnPct必填improvedChurnPct必填

channel_saturation_estimator

Channel Saturation Estimator

Project how many months until a channel's compounding CPA inflation pushes it past your max viable CPA. See the full version at https://rahuldsarker.co/calculators/channel-saturation-estimator

輸入參數maxCpa必填currencycurrentCpa必填monthlyInflationPct必填

product_led_growth_feasibility_grader

Product-Led Growth Feasibility Grader

Score whether a product can support a self-serve, product-led growth motion, versus a hybrid or sales-led approach, across 5 weighted criteria. See the full version at https://rahuldsarker.co/calculators/product-led-growth-feasibility-grader

輸入參數ttv必填price必填value必填viral必填currencyselfserve必填

growth_team_hiring_sequence_planner

Growth Team Hiring Sequence Planner

Recommend the right growth/marketing hiring sequence for your ARR band, from founder-led at pre-$1M to a full leadership team at $10M+. See the full version at https://rahuldsarker.co/calculators/growth-team-hiring-sequence-planner

輸入參數arr必填currency

bootstrapped_vs_venture_scaler_modeler

Bootstrapped vs Venture-Backed Scaler Modeler

Compare a founder's take-home from a bootstrapped exit against a venture-backed, diluted exit, and find the break-even exit value where raising starts to pay off. See the full version at https://rahuldsarker.co/calculators/bootstrapped-vs-venture-scaler-modeler

輸入參數bootExit必填currencyventureExit必填bootOwnershipPct必填ventureOwnershipPct必填

internationalization_market_prioritization_grid

Internationalization Market Prioritization Grid

Score a candidate international market on size, localization ease, competitive whitespace, regulatory ease, and payments/GTM readiness to decide whether to prioritize, plan, or deprioritize it. See the full version at https://rahuldsarker.co/calculators/internationalization-market-prioritization-grid

輸入參數size必填currencypayments必填regulatory必填competition必填localization必填

annual_growth_goal_back_calculator

Annual Growth Goal Back-Calculator

Work backwards from an annual revenue goal, through ACV and close rates, to the traffic and leads needed per month to hit it. See the full version at https://rahuldsarker.co/calculators/annual-growth-goal-back-calculator

輸入參數acv必填currencyrevenueGoal必填visitorToLeadPct必填leadToCustomerPct必填

organic_traffic_value_monetizer

Organic Traffic Value Monetizer

Value organic search traffic in ad-equivalent spend (clicks x CPC), and split out the non-branded portion that represents genuine, defensible SEO value. See the full version at https://rahuldsarker.co/calculators/organic-traffic-value-monetizer

輸入參數avgCpc必填currencyorganicClicks必填brandedSharePct必填

strategic_pivot_risk_grader

Strategic Pivot Risk Grader

Grade the risk of pivoting upmarket to enterprise across sales motion, pricing/packaging, cash buffer, product compliance, and team experience. See the full version at https://rahuldsarker.co/calculators/strategic-pivot-risk-grader

輸入參數cash必填team必填motion必填pricing必填product必填currency

conversion_funnel

Conversion Funnel Calculator

Calculate conversion rate and the traffic needed to hit a target number of conversions at that rate. See the full version at https://rahuldsarker.co/calculators/conversion-funnel

輸入參數target必填currencyvisitors必填conversions必填

ab_test_significance_calculator

A/B Test Significance Calculator

Run a two-proportion z-test on an A/B test to get relative uplift and statistical confidence. See the full version at https://rahuldsarker.co/calculators/ab-test-significance-calculator

輸入參數currencyvisitorsA必填visitorsB必填conversionsA必填conversionsB必填

page_speed_leak_calculator

Page Speed Leak Calculator

Estimate the extra conversions and revenue recovered by cutting page load time, using an industry-average per-second conversion penalty. See the full version at https://rahuldsarker.co/calculators/page-speed-leak-calculator

輸入參數currencymonthlyVisitors必填lossPerSecondPctconversionRatePct必填targetLoadSeconds必填currentLoadSeconds必填valuePerConversion必填

above_the_fold_messaging_clarity_grader

Above-the-Fold Messaging Clarity Grader

Score a hero section's five-second clarity across five weighted checks (what you do, outcome, CTA, jargon, subhead) into a 0-100 clarity verdict. See the full version at https://rahuldsarker.co/calculators/above-the-fold-messaging-clarity-grader

輸入參數currencynoJargon必填oneObviousPrimaryCta必填headlineStatesOutcome必填subheadSupportsHeadline必填strangerUnderstandsIn5Seconds必填

micro_conversion_value_modeler

Micro-Conversion Value Modeler

Back into a proxy dollar value for an early-funnel micro-conversion from the value of a won customer and the micro-to-customer conversion rate. See the full version at https://rahuldsarker.co/calculators/micro-conversion-value-modeler

輸入參數currencywonCustomerValue必填microToCustomerRatePct必填monthlyMicroConversions必填

cart_abandonment_calculator

Cart Abandonment Calculator

Calculate revenue lost to cart abandonment and how much a recovery flow could win back. See the full version at https://rahuldsarker.co/calculators/cart-abandonment-calculator

輸入參數currencyavgOrderValue必填cartsPerMonth必填recoveryRatePct必填abandonmentRatePct必填

cta_visual_hierarchy_tester

CTA Visual Hierarchy Tester

Score a call-to-action button's visibility using its real WCAG contrast ratio against the background plus size and placement. See the full version at https://rahuldsarker.co/calculators/cta-visual-hierarchy-tester

輸入參數size必填currencyplacement必填buttonColorHex必填backgroundColorHex必填

typography_legibility_grader

Typography Legibility Grader

Score body copy legibility on font size, line height, and line length against ideal bands, into a 0-100 score. See the full version at https://rahuldsarker.co/calculators/typography-legibility-grader

輸入參數currencyfontSizePx必填lineHeight必填lineLengthChars必填

mobile_checkout_friction_tester

Mobile Checkout Friction Tester

Score a mobile checkout flow's friction from step count, guest checkout, wallet pay, autofill, and mobile input types into a 0-100 score. See the full version at https://rahuldsarker.co/calculators/mobile-checkout-friction-tester

輸入參數steps必填currencywalletPay必填guestCheckout必填autofillSupported必填correctMobileInputs必填

social_proof_strength_auditor

Social Proof Strength Auditor

Score the persuasive strength of testimonials and proof elements across six weighted criteria into a 0-100 credibility score. See the full version at https://rahuldsarker.co/calculators/social-proof-strength-auditor

輸入參數currencyenoughVolume必填namedAndAttributed必填photosLogosOrVideo必填matchesVisitorSegment必填placedNearDecisionPoints必填specificQuantifiedResults必填

value_prop_strength_grader

Value Proposition Strength Grader

Score a value proposition on clarity, specificity, differentiation, outcome focus, and pain relevance into a 0-100 score. See the full version at https://rahuldsarker.co/calculators/value-prop-strength-grader

輸入參數currencyinstantlyClear必填focusedOnOutcome必填speaksToRealPain必填specificNotGeneric必填differentiatedFromCompetitors必填

lead_magnet_copy_grader

Lead Magnet Copy Grader

Score a lead magnet's perceived opt-in value across five weighted criteria into a 0-100 score. See the full version at https://rahuldsarker.co/calculators/lead-magnet-copy-grader

輸入參數currencyfeelsCredible必填appealingFormat必填deliversValueFast必填relevantToIcpProblem必填specificTangibleOutcome必填

exit_intent_timing_optimizer

Exit-Intent Timing Optimizer

Estimate the best time to fire a timed exit-intent popup, based on average session duration, pages per session, and engaged-visitor share. See the full version at https://rahuldsarker.co/calculators/exit-intent-timing-optimizer

輸入參數currencyengagedSharePct必填pagesPerSession必填avgSessionSeconds必填

friction_point_identifier

Friction Point Identifier

Count how many of 8 common conversion-flow friction points are present and turn that into a flow health score. See the full version at https://rahuldsarker.co/calculators/friction-point-identifier

輸入參數currencyforcedUpsells必填noTrustSignals必填slowOrLaggySteps必填tooManyFormFields必填noProgressIndicator必填unclearOrLateErrors必填limitedPaymentOptions必填accountRequiredBeforeValue必填

product_tour_effectiveness_grader

Product Tour Effectiveness Grader

Model a multi-step product tour funnel from start through completion to activation, and flag the biggest drop-off step. See the full version at https://rahuldsarker.co/calculators/product-tour-effectiveness-grader

輸入參數currencytoursStarted必填activationPct必填step1CompletionPct必填step2CompletionPct必填step3CompletionPct必填

pricing_page_architecture_grader

Pricing Page Architecture Grader

Score a pricing page's choice architecture across six weighted criteria (tiers, highlighting, anchoring, comparison, CTA, billing toggle) into a 0-100 score. See the full version at https://rahuldsarker.co/calculators/pricing-page-architecture-grader

輸入參數currencyoneCtaPerTier必填anchoringPresent必填threeToFourTiers必填clearFeatureComparison必填billingToggleWithSavings必填recommendedPlanHighlighted必填

trust_badge_roi_estimator

Trust Badge ROI Estimator

Estimate the monthly and annual revenue lift from adding trust/security badges near a conversion point. See the full version at https://rahuldsarker.co/calculators/trust-badge-roi-estimator

輸入參數currencyexpectedLiftPctmonthlyVisitors必填valuePerConversion必填currentConversionRatePct必填

ux_pattern_anti_pattern_checker

UX Pattern Anti-Pattern Checker

Count how many of 8 known dark patterns are present in a user experience and turn that into an integrity score. See the full version at https://rahuldsarker.co/calculators/ux-pattern-anti-pattern-checker

輸入參數currencyfakeUrgency必填disguisedAds必填trickWording必填confirmshaming必填hiddenCostsLate必填forcedContinuity必填hardCancellation必填preselectedAddOns必填

video_conversion_modeler

Video Conversion Modeler

Model the pipeline and revenue a video drives from views, completion rate, and post-completion conversion rate. See the full version at https://rahuldsarker.co/calculators/video-conversion-modeler

輸入參數currencydealValue必填monthlyViews必填completionRatePct必填completerToConversionPct必填

lead_quality_intent_evaluator

Lead Quality & Intent Evaluator

Split signups into corporate-email vs personal-email intent segments, apply different close rates to each, and score overall lead quality. See the full version at https://rahuldsarker.co/calculators/lead-quality-intent-evaluator

輸入參數currencysignupsPerMonth必填personalCloseRatePct必填corporateCloseRatePct必填corporateEmailSharePct必填

thank_you_page_revenue_maximizer

Thank-You Page Revenue Maximizer

Estimate the extra revenue from adding a secondary action (referral, upsell, booking, or community) on a thank-you page, using typical take rates. See the full version at https://rahuldsarker.co/calculators/thank-you-page-revenue-maximizer

輸入參數action必填currencyconversionsPerMonth必填takeRatePctOverridevaluePerSecondaryAction必填

sales_pipeline_leak_evaluator

Sales Pipeline Leak Evaluator

Run leads through the Lead → MQL → SQL → Opportunity → Win funnel and flag the weakest converting stage. See the full version at https://rahuldsarker.co/calculators/sales-pipeline-leak-evaluator

輸入參數leads必填currencytoMqlPct必填toOppPct必填toSqlPct必填toWinPct必填

pipeline_velocity_equation_engine

Pipeline Velocity Equation Engine

Calculate sales velocity, the revenue your pipeline generates per day, from open opportunities, win rate, deal value, and cycle length. See the full version at https://rahuldsarker.co/calculators/pipeline-velocity-equation-engine

輸入參數currencycycleDays必填winRatePct必填avgDealValue必填openOpportunities必填

lead_routing_delay_cost_calculator

Lead Routing Delay Cost Calculator

Estimate the deals and revenue lost each month from slow lead response times, modeling how conversion decays with response delay. See the full version at https://rahuldsarker.co/calculators/lead-routing-delay-cost-calculator

輸入參數currencydealValue必填monthlyLeads必填conversionAtTargetPct必填targetResponseMinutes必填currentResponseMinutes必填

crm_cleanup_roi_calculator

CRM Cleanup ROI Calculator

Quantify the rep hours and revenue lost to dirty CRM data each year, and the selling capacity a cleanup would free up. See the full version at https://rahuldsarker.co/calculators/crm-cleanup-roi-calculator

輸入參數reps必填currencyhourlyCost必填hoursWastedPerWeek必填

sdr_capacity_and_inbound_quota_planner

SDR Capacity & Inbound Quota Planner

Work out how much inbound volume an SDR team can properly cover per month, and how many reps you would need to fully cover current inbound. See the full version at https://rahuldsarker.co/calculators/sdr-capacity-and-inbound-quota-planner

輸入參數sdrs必填currencytouchesPerLead必填minutesPerTouch必填sellingHoursPerDay必填workingDaysPerMonth必填inboundLeadsPerMonth必填

mql_to_sales_disconnect_analyzer

MQL-to-Sales Disconnect Analyzer

Measure the marketing spend wasted on MQLs that sales rejects, based on the accept rate between the two teams. See the full version at https://rahuldsarker.co/calculators/mql-to-sales-disconnect-analyzer

輸入參數currencycostPerMql必填monthlyMqls必填salesAcceptRatePct必填

lead_scoring_logic_architect

Lead Scoring Logic Architect

Score a lead on weighted fit and behavior criteria and get a routing recommendation (route to sales, nurture, or disqualify). See the full version at https://rahuldsarker.co/calculators/lead-scoring-logic-architect

輸入參數currencyindustryFit必填companySizeFit必填titleSeniority必填highIntentAction必填pricingPageVisit必填contentEngagement必填

lead_grading_calculator

Lead Grading Calculator

Turn firmographic fit criteria into an A–F lead grade, distinct from behavioral lead scoring. See the full version at https://rahuldsarker.co/calculators/lead-grading-calculator

輸入參數currencyindustryFit必填companySizeFit必填budgetConfirmed必填decisionMakerAccess必填serviceableGeography必填

gtm_audit_scorecard

GTM Tracking Audit Scorecard

Score your Google Tag Manager container health across eight weighted dimensions covering tag hygiene, consent, and reconciliation. See the full version at https://rahuldsarker.co/calculators/gtm-audit-scorecard

輸入參數currencyconsentModeV2必填noDuplicateTags必填taggedOwnership必填versionChangeNotes必填dataLayerDocumented必填noOverfiringTriggers必填previewBeforePublish必填monthlyReconciliation必填

form_field_friction_cost_calculator

Form Field Friction Cost Calculator

Estimate the extra leads and pipeline value unlocked by trimming form fields, using a per-field conversion recovery rate. See the full version at https://rahuldsarker.co/calculators/form-field-friction-cost-calculator

輸入參數currencytargetFields必填valuePerLead必填currentFields必填monthlyVisitors必填recoveryPerFieldPct必填currentConversionPct必填

tech_stack_duplication_inspector

Tech Stack Duplication Inspector

Estimate the monthly and annual SaaS spend wasted on overlapping tools, from total spend, tool count, and estimated feature overlap. See the full version at https://rahuldsarker.co/calculators/tech-stack-duplication-inspector

輸入參數currencytoolCount必填overlapPct必填monthlySpend必填

sales_cycle_length_forecaster

Sales Cycle Length Forecaster

Project total deal cycle length by adding stakeholder count and compliance/procurement gates to a base single-buyer cycle. See the full version at https://rahuldsarker.co/calculators/sales-cycle-length-forecaster

輸入參數currencybaseCycleDays必填complianceGate必填decisionMakers必填daysPerExtraStakeholder必填

no_show_rate_revenue_restorer

No-Show Rate Revenue Restorer

Calculate the revenue lost each month to demo no-shows, and how much would be recovered by cutting the no-show rate by 5 or 10 points. See the full version at https://rahuldsarker.co/calculators/no-show-rate-revenue-restorer

輸入參數currencyavgDealValue必填noShowRatePct必填demosBookedPerMonth必填heldDemoCloseRatePct必填

inbound_call_center_routing_auditor

Inbound Call Center Routing Auditor

Estimate the customers and ARR put at risk each year by slow support routing and SLA breaches. See the full version at https://rahuldsarker.co/calculators/inbound-call-center-routing-auditor

輸入參數currencyexcessChurnPct必填activeCustomers必填slowSupportSharePct必填annualRevenuePerCustomer必填

ae_sdr_hand_off_friction_calculator

AE/SDR Hand-off Friction Calculator

Quantify meetings and revenue lost when the SDR-to-AE hand-off is inconsistent, from scheduling, notes, CRM completeness, and SLA follow-up quality. See the full version at https://rahuldsarker.co/calculators/ae-sdr-hand-off-friction-calculator

輸入參數currencyavgDealValue必填crmConsistency必填slaConsistency必填notesConsistency必填meetingToCloseRatePct必填schedulingConsistency必填meetingsHandedOffPerMonth必填

revops_maturity_benchmarker

RevOps Maturity Benchmarker

Score RevOps maturity across five dimensions (systems, attribution, governance, forecasting, automation) on a 1-4 scale and identify the weakest area. See the full version at https://rahuldsarker.co/calculators/revops-maturity-benchmarker

輸入參數currencydataGovernance必填forecastingRigor必填processAutomation必填systemConnectivity必填attributionAndReporting必填

cross_sell_opportunity_estimator

Cross-Sell Opportunity Estimator

Estimate the expansion ARR available from cross-selling a second product into your existing single-product customer base. See the full version at https://rahuldsarker.co/calculators/cross-sell-opportunity-estimator

輸入參數currencycrossSellAcv必填activeCustomers必填expectedAttachRatePct必填singleProductSharePct必填

data_enrichment_value_predictor

Data Enrichment Value Predictor

Compare the cost of manual rep research against an enrichment tool subscription, and calculate the net monthly savings and ROI. See the full version at https://rahuldsarker.co/calculators/data-enrichment-value-predictor

輸入參數currencyhourlyCost必填minutesPerLead必填toolCostPerMonth必填repsDoingResearch必填leadsResearchedPerWeek必填

renewals_pipeline_health_grader

Renewals Pipeline Health Grader

Grade an account renewal on weighted 90-day signals (adoption, sponsor strength, support sentiment, realised value) and quantify ARR at risk. See the full version at https://rahuldsarker.co/calculators/renewals-pipeline-health-grader

輸入參數currencyaccountArr必填productAdoptionTrend必填realisedValueVsGoals必填supportSentimentTrend必填executiveSponsorStrength必填

sales_commission_tier_modeler

Sales Commission Tier Modeler

Model a rep's commission payout under a base-plus-accelerator plan, and check it against gross margin to catch plans that outrun profitability. See the full version at https://rahuldsarker.co/calculators/sales-commission-tier-modeler

輸入參數currencyannualQuota必填attainmentPct必填acceleratedRatePct必填dealGrossMarginPct必填baseCommissionRatePct必填acceleratorThresholdPct必填

historical_data_drift_estimator

Historical Data Drift Estimator

Estimate how much of a contact database has gone stale since it was last cleansed, using an annual B2B data decay rate. See the full version at https://rahuldsarker.co/calculators/historical-data-drift-estimator

輸入參數currencytotalContacts必填annualDecayRatePct必填monthsSinceLastCleanse必填

contract_redline_duration_predictor

Contract Redline Duration Predictor

Predict how long legal redlines will take, whether the deal will slip past quarter-end, and the revenue at risk. See the full version at https://rahuldsarker.co/calculators/contract-redline-duration-predictor

輸入參數paper必填currencydealValue必填daysPerRound必填daysToQuarterEnd必填baseLegalReviewDays必填expectedRedlineRounds必填

net_revenue_retention_forecaster

Net Revenue Retention Forecaster

Project ARR over three years from net revenue retention (gross churn and expansion), compounded on the existing base with no new customers. See the full version at https://rahuldsarker.co/calculators/net-revenue-retention-forecaster

輸入參數arr必填segmentcurrencyannualExpansionPct必填annualGrossChurnPct必填

rule_of_40_sandbox

Rule of 40 Sandbox

Add YoY revenue growth and profit margin to see if a SaaS business clears the Rule of 40 benchmark. See the full version at https://rahuldsarker.co/calculators/rule-of-40-sandbox

輸入參數currencyyoyGrowthPct必填profitMarginPct必填

cac_payback_period_matrix

CAC Payback Period Matrix

Calculate months to recover fully-loaded CAC on a gross-margin basis versus a raw-revenue basis. See the full version at https://rahuldsarker.co/calculators/cac-payback-period-matrix

輸入參數cac必填segmentcurrencymonthlyArpa必填grossMarginPct必填

saas_churn_cohort_visualizer

SaaS Churn Cohort Visualizer

Project how a customer cohort decays over time under a monthly churn rate, and the implied average customer lifespan. See the full version at https://rahuldsarker.co/calculators/saas-churn-cohort-visualizer

輸入參數segmentcurrencycohortSize必填monthlyChurnPct必填

acv_weight_planner

ACV Weight Planner

Break ARR down by SMB versus enterprise segments to see revenue concentration and per-customer averages. See the full version at https://rahuldsarker.co/calculators/acv-weight-planner

輸入參數entAcv必填smbAcv必填currencyentCount必填smbCount必填

expansion_revenue_impact_simulator

Expansion Revenue Impact Simulator

Estimate expansion ARR from an upsell offer and the new-logo CAC it would take to buy the same growth. See the full version at https://rahuldsarker.co/calculators/expansion-revenue-impact-simulator

輸入參數currencyupsellAcv必填newLogoCac必填adoptionRatePct必填existingCustomers必填

freemium_to_paid_pipeline_modeler

Freemium to Paid Pipeline Modeler

Model monthly and annual new ARR from a freemium funnel, and the ARR still lagging in the upgrade pipeline. See the full version at https://rahuldsarker.co/calculators/freemium-to-paid-pipeline-modeler

輸入參數paidAcv必填currencymonthlySignups必填conversionRatePct必填timeToUpgradeMonths必填

saas_quick_ratio_engine

SaaS Quick Ratio Engine

Divide MRR gained (new + expansion) by MRR lost (contraction + churn) to measure growth durability. See the full version at https://rahuldsarker.co/calculators/saas-quick-ratio-engine

輸入參數newMrr必填currencychurnedMrr必填expansionMrr必填contractionMrr必填

gross_margin_impact_calculator

Gross Margin Impact Calculator

Calculate gross profit and gross margin from revenue, infrastructure cost, and support/delivery cost. See the full version at https://rahuldsarker.co/calculators/gross-margin-impact-calculator

輸入參數revenue必填currencysupportCost必填infrastructureCost必填

seat_utilization_risk_assessor

Seat Utilization Risk Assessor

Estimate renewal ARR at risk from low seat utilization on a subscription contract. See the full version at https://rahuldsarker.co/calculators/seat-utilization-risk-assessor

輸入參數currencyrenewalArr必填seatsActive必填seatsPurchased必填

enterprise_contract_discount_evaluator

Enterprise Contract Discount Evaluator

Show how much lifetime profit an enterprise discount actually gives away, since cost-to-serve does not drop with price. See the full version at https://rahuldsarker.co/calculators/enterprise-contract-discount-evaluator

輸入參數listAcv必填currencytermYears必填discountPct必填grossMarginPct必填

mrr_bridge_planner

MRR Bridge Planner

Bridge starting MRR to ending MRR across new, expansion, resurrected, contraction, and churned movements. See the full version at https://rahuldsarker.co/calculators/mrr-bridge-planner

輸入參數newMrr必填currencychurnedMrr必填startingMrr必填expansionMrr必填contractionMrr必填resurrectedMrr必填

ltv_to_cac_ratio_health_grader

LTV : CAC Ratio Health Grader

Grade the LTV:CAC ratio on a gross-margin basis against health bands, from losing money to under-investing. See the full version at https://rahuldsarker.co/calculators/cac-ltv

輸入參數cac必填ltv必填currencygrossMarginPct必填

saas_valuation_multiple_predictor

SaaS Valuation Multiple Predictor

Estimate a directional ARR multiple and enterprise value range from growth, net revenue retention, and gross margin. See the full version at https://rahuldsarker.co/calculators/arr-multiple-calculator

輸入參數arr必填nrrPct必填currencyyoyGrowthPct必填grossMarginPct必填

product_usage_frequency_grader

Product Usage Frequency Grader

Grade product stickiness from DAU/MAU into bands from idle tab to daily utility. See the full version at https://rahuldsarker.co/calculators/product-usage-frequency-grader

輸入參數dau必填mau必填currency

b2b_implementation_delay_cost_calculator

B2B Implementation Delay Cost Calculator

Estimate revenue delayed each year by a slow onboarding gap between signature and go-live, and what halving it recovers. See the full version at https://rahuldsarker.co/calculators/b2b-implementation-delay-cost-calculator

輸入參數acv必填currencydelayWeeks必填dealsPerYear必填

customer_success_capacity_planner

Customer Success Capacity Planner

Compare CSM account load against a healthy book size to see capacity utilization and the hiring gap. See the full version at https://rahuldsarker.co/calculators/customer-success-capacity-planner

輸入參數csmCount必填currencytotalAccounts必填healthyAccountsPerCsm必填

deferred_revenue_amortization_planner

Deferred Revenue Amortization Planner

Straight-line an upfront payment across the contract term to see revenue recognized to date versus the remaining deferred-revenue liability. See the full version at https://rahuldsarker.co/calculators/deferred-revenue-amortization-planner

輸入參數currencytermMonths必填monthsElapsed必填upfrontPayment必填

net_promoter_score_impact_modeler

Net Promoter Score Impact Modeler

Turn promoter and detractor percentages into NPS, net advocacy, and the organic referral pipeline promoters generate. See the full version at https://rahuldsarker.co/calculators/net-promoter-score-impact-modeler

輸入參數currencypromoterPct必填customerBase必填detractorPct必填referralRatePct必填

marketing_budget

Marketing Budget Calculator

Size an annual and monthly marketing budget as a percentage of revenue, based on a growth posture (maintain, grow, or aggressive) or a custom override. See the full version at https://rahuldsarker.co/calculators/marketing-budget

輸入參數posturecurrencycustomPctannualRevenue必填

rto_adjusted_roas_calculator

RTO-Adjusted ROAS Calculator (India COD)

Work out ROAS after Return-to-Origin (RTO) on cash-on-delivery orders: delivered revenue, RTO cost, RTO-adjusted ROAS and effective cost per delivered order. See the full version at https://rahuldsarker.co/calculators/rto-adjusted-roas-calculator

輸入參數aov必填spend必填orders必填currencycodRtoPct必填codSharePct必填prepaidRtoPct必填shippingPerRto必填

sales_quota_calculator

Sales Quota Calculator (Top-Down vs Bottom-Up)

Set sales quotas two ways and compare: top-down (revenue target split across reps at an expected attainment) and bottom-up (what each rep can realistically close). See the full version at https://rahuldsarker.co/calculators/sales-quota-calculator

輸入參數reps必填target必填rampPct必填currencydealSize必填winRatePct必填cycleMonths必填attainmentPct必填openOppsPerRep必填

sales_rep_ramp_calculator

Sales Rep Ramp Time and Cost Calculator

Estimate the cost of ramping new sales reps: unproductive cost during ramp, bookings lost versus fully ramped reps, first-year bookings and payback month. See the full version at https://rahuldsarker.co/calculators/sales-rep-ramp-calculator

輸入參數curvehires必填currencyrampMonths必填monthlyCost必填monthlyQuota必填

email_marketing_roi_calculator

Email Marketing ROI Calculator

Estimate monthly revenue, ROI, revenue per email and revenue per subscriber from an email programme, in ecommerce or B2B pipeline mode. See the full version at https://rahuldsarker.co/calculators/email-marketing-roi-calculator

輸入參數openPct必填currencylistSize必填toolCost必填peopleCost必填winRatePctconversionPct必填clickToOpenPct必填emailsPerMonth必填valuePerConversion必填

seat_vs_usage_pricing_calculator

Seat vs Usage Pricing Calculator

Compare per-seat, usage-based and hybrid (platform fee plus overage) pricing revenue for a customer mix of small, mid and large accounts. See the full version at https://rahuldsarker.co/calculators/seat-vs-usage-pricing-calculator

輸入參數currencymidSeats必填midUnits必填seatPrice必填unitPrice必填largeSeats必填largeUnits必填smallSeats必填smallUnits必填platformFee必填midCustomers必填overagePrice必填另有 3 個

advertising_to_sales_ratio_calculator

Advertising to Sales Ratio Calculator

Calculate the advertising-to-sales (A/S) ratio from advertising spend and net sales, with an optional prior period for the trend and the incremental ratio. See the full version at https://rahuldsarker.co/calculators/advertising-to-sales-ratio-calculator

輸入參數adSpend必填currencynetSales必填priorAdSpendpriorNetSales

find_calculator

Find the right calculator

Search the 110+ marketing, sales, RevOps and SaaS calculators by what you want to work out (e.g. "payback on ad spend", "churn", "valuation"). Returns tool names and their inputs; run one with run_calculator or call it directly.

輸入參數limitquery必填

run_calculator

Run a calculator by name

Run any rahuldsarker.co calculator by its tool name (from find_calculator). Inputs you leave out are asked of the person directly when the client supports forms; otherwise the result lists what to ask for.

輸入參數name必填arguments

benchmark_metric

Benchmark a marketing or SaaS metric

Say whether a number is good: returns the band (e.g. "Healthy", "Below target"), the target range and what it means, for LTV:CAC, CAC payback, churn, NRR, GRR, Rule of 40, Magic Number, burn multiple, quick ratio, gross margin, ROAS, conversion rate, marketing budget % of revenue and NPS. Rules of thumb, not guarantees.

輸入參數value必填metric必填segmentgrossMarginPct

request_callback

Ask Rahul D Sarker to get in touch

Send the person's name, email, phone and what they need help with to Rahul D Sarker, who replies directly. Only use when the person asks to be contacted. Where the client supports forms, they review and submit the details themselves; otherwise show them the details and set confirmed only after they agree. To pick a call time instead, use check_availability.

輸入參數emailphonecompanymessagelastNameconfirmedfirstName

版本歷史

3
  1. v1.3.0最新Oct 7, 2026
  2. v1.2.0Oct 5, 2026
  3. v1.1.0Sep 29, 2026

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