SaaS Metrics
SaaS unit economics and retention calculators for CAC, LTV, payback, churn, and growth quality.
How to use SaaS metrics
SaaS metrics are only useful when the definitions are consistent. Pick a handful of core metrics (CAC, payback, retention, and LTV) and track them for the same customer segment and time window.
Use these calculators as a fast sanity-check, then validate decisions with cohort data when you have enough volume.
- Start with CAC and payback to understand cash efficiency.
- Use churn/retention to understand whether growth will get harder over time.
- Use LTV and LTV:CAC to translate retention into long-term economics.
Common pitfalls
Most teams get misled by mismatched definitions: mixing gross vs net revenue, using different time windows, or comparing paid-only CAC to an LTV model that assumes fully-loaded costs.
- Mixing customer churn with revenue retention without calling it out.
- Using different periods for spend and customers (e.g., quarterly spend with monthly signups).
- Ignoring segment differences (SMB vs enterprise, self-serve vs sales-led).
Start here
SaaS Metrics
Bookings vs ARR Calculator
Compare bookings vs ARR (and cash) for a contract with term length and one-time fees.
SaaS Metrics
Burn Multiple Calculator
Calculate burn multiple: net burn / net new ARR (a growth efficiency metric).
SaaS Metrics
CAC Calculator
Calculate Customer Acquisition Cost (CAC) from total acquisition spend and new customers.
SaaS Metrics
CAC Payback Period Calculator
Estimate how many months it takes to recover CAC (months to recover CAC) using gross profit.
SaaS Metrics
LTV Calculator
Estimate customer Lifetime Value (LTV) using ARPA, gross margin, and churn rate.
SaaS Metrics
LTV:CAC Calculator
Compute LTV:CAC ratio and CAC payback using ARPA, gross margin, churn, and CAC.
All calculators
SaaS Metrics
Activation Rate Calculator
Compute activation rate: what % of new signups reach your activation event (and what you need to hit a target).
SaaS Metrics
ARPA Calculator
Calculate Average Revenue Per Account (ARPA) for SaaS businesses and understand the ARPA formula.
SaaS Metrics
ARPU Calculator
Calculate Average Revenue Per User (ARPU) for a period and understand the ARPU formula.
SaaS Metrics
ARPU Growth Decomposition Calculator
Decompose revenue growth into ARPU change vs user growth (and interaction) between two periods.
SaaS Metrics
ARR Calculator
Estimate Annual Recurring Revenue (ARR) from customers and ARPA.
SaaS Metrics
ARR Growth Rate Calculator
Calculate ARR growth over a period and convert it to CMGR and annualized growth (CAGR).
SaaS Metrics
ARR Valuation Calculator
Estimate a SaaS valuation from ARR and a revenue multiple (ARR valuation).
SaaS Metrics
ARR Valuation Sensitivity Calculator
Estimate valuation sensitivity to ARR and revenue multiple assumptions (simple 3x3 grid).
SaaS Metrics
ARR vs MRR Calculator
Convert ARR to MRR (and MRR to ARR) and understand the ARR vs MRR relationship.
SaaS Metrics
ARR Waterfall Calculator
Build an ARR waterfall: starting ARR + new + expansion - contraction - churn = ending ARR.
SaaS Metrics
Blended CAC Calculator
Compare paid-only CAC vs fully-loaded (blended) CAC, and estimate payback at a target margin.
SaaS Metrics
Bookings vs ARR Calculator
Compare bookings vs ARR (and cash) for a contract with term length and one-time fees.
SaaS Metrics
Burn Multiple Calculator
Calculate burn multiple: net burn / net new ARR (a growth efficiency metric).
SaaS Metrics
CAC Calculator
Calculate Customer Acquisition Cost (CAC) from total acquisition spend and new customers.
SaaS Metrics
CAC Payback Period Calculator
Estimate how many months it takes to recover CAC (months to recover CAC) using gross profit.
SaaS Metrics
CAC Payback Sensitivity Calculator
See how CAC payback months change as ARPA and gross margin vary (simple 3x3 sensitivity).
SaaS Metrics
Churn Rate Calculator
Calculate customer churn rate for a period and compare retention across segments or cohorts.
SaaS Metrics
Cohort LTV Forecast Calculator
Estimate cohort-based LTV using churn, expansion, gross margin, and optional discounting.
SaaS Metrics
Cohort Payback Curve Calculator
Estimate when a cohort pays back CAC using a simple retention curve (two-stage churn) and optional expansion.
SaaS Metrics
Customer Lifetime Calculator
Estimate customer lifetime (months) from monthly churn rate (a simple approximation).
SaaS Metrics
DAU/MAU (Stickiness) Calculator
Compute DAU/MAU stickiness and translate it into implied active days per month.
SaaS Metrics
Feature Adoption Rate Calculator
Compute feature adoption: what % of active users used a specific feature in a time window.
SaaS Metrics
Fully-loaded CAC Calculator
Calculate fully-loaded CAC by including paid spend plus sales & marketing costs (salaries, tools, and other acquisition costs).
SaaS Metrics
Gross Margin Impact Calculator
Quantify how gross margin changes affect gross profit LTV, payback, and LTV:CAC (before vs after).
SaaS Metrics
Gross Revenue Churn Calculator
Calculate gross revenue churn rate from contraction and churned MRR (with monthly-equivalent conversion).
SaaS Metrics
GRR Calculator
Calculate Gross Revenue Retention (GRR) from starting MRR, contraction, and churn.
SaaS Metrics
LTV Calculator
Estimate customer Lifetime Value (LTV) using ARPA, gross margin, and churn rate.
SaaS Metrics
LTV Sensitivity Calculator
See how gross profit LTV changes as churn and gross margin vary (simple 3x3 sensitivity).
SaaS Metrics
LTV:CAC Calculator
Compute LTV:CAC ratio and CAC payback using ARPA, gross margin, churn, and CAC.
SaaS Metrics
MRR Calculator
Estimate Monthly Recurring Revenue (MRR) from customers and ARPA.
SaaS Metrics
MRR Churn Rate Calculator
Calculate MRR churn rate from churned MRR and starting MRR (with monthly-equivalent conversion).
SaaS Metrics
MRR Forecast Calculator
Forecast MRR over time using new MRR plus expansion, contraction, and churn rates.
SaaS Metrics
MRR Growth Rate Calculator
Calculate MRR growth over a period and convert it to CMGR and annualized growth (CAGR).
SaaS Metrics
MRR Waterfall Calculator
Build an MRR waterfall: starting MRR + new + expansion - contraction - churn = ending MRR.
SaaS Metrics
Net New ARR Calculator
Calculate net new ARR from new, expansion, contraction, and churned ARR movements.
SaaS Metrics
Net New MRR Calculator
Calculate net new MRR from new, expansion, contraction, and churned MRR.
SaaS Metrics
NRR Calculator
Calculate Net Revenue Retention (NRR) from starting MRR and revenue movements.
SaaS Metrics
NRR vs GRR Calculator
Calculate NRR and GRR together from the same starting MRR and expansion/contraction/churn inputs.
SaaS Metrics
OTE & Commission Rate Calculator
Compute on-target earnings (OTE), commission rate, and compensation split from base salary, variable pay, and quota.
SaaS Metrics
Pipeline Coverage Calculator
Compute pipeline coverage ratio and expected bookings from pipeline and win rate.
SaaS Metrics
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.
SaaS Metrics
PQL to Paid Conversion Calculator
Compute PQL-to-paid conversion rate and the number of paid customers implied by PQL volume.
SaaS Metrics
Price Increase Break-even Calculator
Estimate the maximum churn (immediate or ongoing) a price increase can tolerate before it destroys revenue.
SaaS Metrics
Pricing & Packaging Guardrails Calculator
Set guardrails for pricing changes by translating ARPA, margin, churn, and target payback into max discount and min price targets.
SaaS Metrics
Quota Attainment Calculator
Calculate quota attainment and pacing from booked revenue to date, quota, and days elapsed in the period.
SaaS Metrics
Retention Curve Calculator
Model a simple cohort retention curve (logo retention) and translate it into expected revenue and gross profit over time.
SaaS Metrics
Retention Rate Calculator
Calculate retention rate for a period accounting for new customers.
SaaS Metrics
Retention Targets Planner (NRR/GRR)
Compute required expansion (for a target NRR) and allowable churn+contraction (for a target GRR) using monthly rates.
SaaS Metrics
Revenue Retention Curve Calculator
Model GRR and NRR over time from monthly expansion, contraction, and churn assumptions (existing cohort only).
SaaS Metrics
Rule of 40 Calculator
Calculate the Rule of 40 score: growth rate (%) + profit margin (%).
SaaS Metrics
SaaS Magic Number Calculator
SaaS Magic Number definition and calculation using net new ARR and prior-period sales & marketing spend.
SaaS Metrics
SaaS Quick Ratio Calculator
Calculate the SaaS quick ratio: (new + expansion) / (contraction + churn).
SaaS Metrics
Sales Capacity Calculator (with Ramp)
Estimate period bookings capacity from team size, quota per rep, expected attainment, and ramped vs ramping mix.
SaaS Metrics
Sales Funnel Targets Calculator
Translate a revenue target into required wins, opportunities, SQLs, MQLs, and leads using funnel conversion rates.
SaaS Metrics
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.
SaaS Metrics
Trial-to-paid Conversion Calculator
Compute trial-to-paid conversion rate and estimate required conversions to hit a target.
SaaS Metrics
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.
SaaS Metrics
Unit Economics Calculator
Model CAC, payback, LTV, and LTV:CAC together from ARPA, gross margin, and churn.
SaaS Metrics
Unit Economics Dashboard Calculator
Compute a unit economics snapshot: gross profit LTV, CAC payback, LTV:CAC, and break-even targets from a few inputs.
SaaS Metrics
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: definition, formula, and what to include
A practical guide to fully-loaded CAC: how it differs from paid CAC, what to include, and how to keep the definition consistent for planning.
Updated 2026-01-24
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