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SaaS Metrics

SaaS unit economics and retention calculators for CAC, LTV, payback, churn, and growth quality.

Best for SaaS founders, finance partners, RevOps, and growth teams.

How to use this hub

Start with the operating question, not the metric name. Most SaaS teams are trying to judge growth quality, payback, retention, or capital efficiency.

Choose the task below, then jump into the calculator or guide that gets you to a practical decision fastest.

Quick checks before you compare tools

Keep cohort, revenue basis, and time window consistent before comparing CAC, LTV, or retention.
Separate acquisition efficiency from product retention so one blended ratio does not hide the real constraint.
Use scenario-based planning when burn, payback, and runway all move together.

Choose a task

Start from the question you are trying to answer, then jump into the calculator or guide that gets you moving fastest.

Acquisition and payback

Use these when you need to understand whether new growth is creating value or just consuming cash faster.

Check if acquisition is really paying back

Move past headline CAC and see whether the company earns its acquisition spend back on a realistic timeline.

Open CAC payback calculator Read fully-loaded CAC guide Use fully-loaded CAC calculator

Model unit economics end to end

Bring CAC, LTV, payback, and margin into one view before you change spend targets or growth plans.

Read unit economics guide Open unit economics calculator Open LTV:CAC calculator

Retention and growth quality

Use these when top-line growth looks fine but you still need to understand whether users and revenue are actually sticking.

See whether recurring revenue is holding up

Check retention quality before you trust blended growth or aggressive acquisition targets.

Open NRR calculator Open GRR calculator Read unit economics dashboard guide

Check whether usage is habit or just signups

Use stickiness metrics when activation is fine on paper but the product still does not feel meaningfully engaged.

Read DAU/MAU guide Open DAU/MAU calculator Read unit economics hub guide

Start here

Bookings vs ARR Calculator

Compare bookings vs ARR (and cash) for a contract with term length and one-time fees.

Burn Multiple Calculator

Calculate burn multiple: net burn / net new ARR (a growth efficiency metric).

Calculate Customer Acquisition Cost (CAC) from total acquisition spend and new customers.

CAC Payback Period Calculator

Estimate how many months it takes to recover CAC (months to recover CAC) using gross profit.

Estimate customer Lifetime Value (LTV) using ARPA, gross margin, and churn rate.

LTV:CAC Calculator

Compute LTV:CAC ratio and CAC payback using ARPA, gross margin, churn, and CAC.

All calculators

Activation Rate Calculator

Compute activation rate: what % of new signups reach your activation event (and what you need to hit a target).

ARPA Calculator

Calculate Average Revenue Per Account (ARPA) for SaaS businesses and understand the ARPA formula.

ARPU Calculator

Calculate Average Revenue Per User (ARPU) for a period and understand the ARPU formula.

ARPU Growth Decomposition Calculator

Decompose revenue growth into ARPU change vs user growth (and interaction) between two periods.

Estimate Annual Recurring Revenue (ARR) from customers and ARPA.

ARR Growth Rate Calculator

Calculate ARR growth over a period and convert it to CMGR and annualized growth (CAGR).

ARR Valuation Calculator

Estimate a SaaS valuation from ARR and a revenue multiple (ARR valuation).

ARR Valuation Sensitivity Calculator

Estimate valuation sensitivity to ARR and revenue multiple assumptions (simple 3x3 grid).

ARR vs MRR Calculator

Convert ARR to MRR (and MRR to ARR) and understand the ARR vs MRR relationship.

ARR Waterfall Calculator

Build an ARR waterfall: starting ARR + new + expansion - contraction - churn = ending ARR.

Blended CAC Calculator

Compare paid-only CAC vs fully-loaded (blended) CAC, and estimate payback at a target margin.

Bookings vs ARR Calculator

Compare bookings vs ARR (and cash) for a contract with term length and one-time fees.

Burn Multiple Calculator

Calculate burn multiple: net burn / net new ARR (a growth efficiency metric).

Calculate Customer Acquisition Cost (CAC) from total acquisition spend and new customers.

CAC Payback Period Calculator

Estimate how many months it takes to recover CAC (months to recover CAC) using gross profit.

CAC Payback Sensitivity Calculator

See how CAC payback months change as ARPA and gross margin vary (simple 3x3 sensitivity).

Churn Rate Calculator

Calculate customer churn rate for a period and compare retention across segments or cohorts.

Cohort LTV Forecast Calculator

Estimate cohort-based LTV using churn, expansion, gross margin, and optional discounting.

Cohort Payback Curve Calculator

Estimate when a cohort pays back CAC using a simple retention curve (two-stage churn) and optional expansion.

Customer Lifetime Calculator

Estimate customer lifetime (months) from monthly churn rate (a simple approximation).

DAU/MAU (Stickiness) Calculator

Compute DAU/MAU stickiness and translate it into implied active days per month.

Feature Adoption Rate Calculator

Compute feature adoption: what % of active users used a specific feature in a time window.

Fully-loaded CAC Calculator

Calculate fully-loaded CAC by including paid spend plus sales & marketing costs (salaries, tools, and other acquisition costs).

Gross Margin Impact Calculator

Quantify how gross margin changes affect gross profit LTV, payback, and LTV:CAC (before vs after).

Gross Revenue Churn Calculator

Calculate gross revenue churn rate from contraction and churned MRR (with monthly-equivalent conversion).

Calculate Gross Revenue Retention (GRR) from starting MRR, contraction, and churn.

Estimate customer Lifetime Value (LTV) using ARPA, gross margin, and churn rate.

LTV Sensitivity Calculator

See how gross profit LTV changes as churn and gross margin vary (simple 3x3 sensitivity).

LTV:CAC Calculator

Compute LTV:CAC ratio and CAC payback using ARPA, gross margin, churn, and CAC.

Estimate Monthly Recurring Revenue (MRR) from customers and ARPA.

MRR Churn Rate Calculator

Calculate MRR churn rate from churned MRR and starting MRR (with monthly-equivalent conversion).

MRR Forecast Calculator: Monthly Projection, Formula, and Example

Project future MRR using new MRR, expansion, contraction, churn, and time horizon inputs with a simple monthly forecast model.

MRR Growth Rate Calculator

Calculate MRR growth over a period and convert it to CMGR and annualized growth (CAGR).

MRR Waterfall Calculator

Build an MRR waterfall: starting MRR + new + expansion - contraction - churn = ending MRR.

Net New ARR Calculator

Calculate net new ARR from new, expansion, contraction, and churned ARR movements.

Net New MRR Calculator

Calculate net new MRR from new, expansion, contraction, and churned MRR.

Calculate Net Revenue Retention (NRR) from starting MRR and revenue movements.

NRR vs GRR Calculator

Calculate NRR and GRR together from the same starting MRR and expansion/contraction/churn inputs.

OTE & Commission Rate Calculator

Compute on-target earnings (OTE), commission rate, and compensation split from base salary, variable pay, and quota.

Pipeline Coverage Calculator

Compute pipeline coverage ratio and expected bookings from pipeline and win rate.

Required Pipeline Calculator

Estimate how much pipeline (and how many opportunities) you need to hit a revenue target given win rate and average deal size.

PQL to Paid Conversion Calculator

Compute PQL-to-paid conversion rate and the number of paid customers implied by PQL volume.

Price Increase Break-even Calculator

Estimate the maximum churn (immediate or ongoing) a price increase can tolerate before it destroys revenue.

Pricing & Packaging Guardrails Calculator

Set guardrails for pricing changes by translating ARPA, margin, churn, and target payback into max discount and min price targets.

Quota Attainment Calculator

Calculate quota attainment and pacing from booked revenue to date, quota, and days elapsed in the period.

Retention Curve Calculator

Model a simple cohort retention curve (logo retention) and translate it into expected revenue and gross profit over time.

Retention Rate Calculator

Calculate retention rate for a period accounting for new customers.

Retention Targets Planner (NRR/GRR)

Compute required expansion (for a target NRR) and allowable churn+contraction (for a target GRR) using monthly rates.

Revenue Retention Curve Calculator

Model GRR and NRR over time from monthly expansion, contraction, and churn assumptions (existing cohort only).

Rule of 40 Calculator

Calculate the Rule of 40 score: growth rate (%) + profit margin (%).

SaaS Magic Number Calculator: Formula, Benchmark, and Example

Calculate SaaS Magic Number using net new ARR and prior-period sales and marketing spend, with formula, benchmark ranges, and example.

SaaS Quick Ratio Calculator

Calculate the SaaS quick ratio: (new + expansion) / (contraction + churn).

Sales Capacity Calculator (with Ramp)

Estimate period bookings capacity from team size, quota per rep, expected attainment, and ramped vs ramping mix.

Sales Funnel Targets Calculator

Translate a revenue target into required wins, opportunities, SQLs, MQLs, and leads using funnel conversion rates.

Sales Quota Calculator (Team to Rep)

Sales quota calculator to estimate quota per rep from a team target using expected attainment, ramp mix, and optional pipeline coverage checks.

Trial-to-paid Conversion Calculator

Compute trial-to-paid conversion rate and estimate required conversions to hit a target.

Two-stage Retention Curve Calculator

Model a retention curve with different churn rates for early months vs steady-state, and estimate expected value over time.

Unit Economics Calculator

Model CAC, payback, LTV, and LTV:CAC together from ARPA, gross margin, and churn.

Unit Economics Dashboard Calculator

Compute a unit economics snapshot: gross profit LTV, CAC payback, LTV:CAC, and break-even targets from a few inputs.

WAU/MAU Calculator

Compute WAU/MAU and translate it into implied active weeks per month.

Guides

CAC: how to calculate Customer Acquisition Cost (formula + examples)

Customer acquisition cost (CAC) explained: formula, what to include, and practical CAC metrics (paid vs fully-loaded) you can trust.

Updated 2026-01-23

Fully-loaded CAC: what to include, what to exclude, and how to use it

Use this guide when paid CAC looks fine but cash efficiency still feels off. It shows which sales and marketing costs belong in fully-loaded CAC, what to exclude, and how to pair the result with payback for planning.

Updated 2026-03-31

LTV: How to estimate Lifetime Value (and when not to)

A practical LTV guide: quick models vs cohort-based LTV, unit consistency, and pitfalls with churn and gross margin.

Updated 2026-01-05

LTV sensitivity: how churn and margin change LTV

A practical guide to LTV sensitivity: vary churn and gross margin to see how gross profit LTV changes under realistic scenarios.

Updated 2026-01-24

CAC Payback Period (Months to Recover CAC): definition, formula, benchmarks

Learn how to calculate CAC payback (months to recover CAC) using gross profit, plus benchmarks and levers to improve it.

Updated 2026-01-05

CAC payback sensitivity: ARPA * margin scenarios (months to recover CAC)

A practical guide to CAC payback sensitivity: vary ARPA and gross margin to see how months to recover CAC changes under realistic scenarios.

Updated 2026-01-24

Browse all guides →

Prefer to browse instead of following a task path? Start with CAC , ROAS, or cash runway.