CAC / LTV Calculator
Turn acquisition spend, customer count, recurring revenue, gross margin and churn into a transparent unit-economics baseline.
MODEL / FORMULA
LTV = monthly ARPU × gross margin × (1 ÷ monthly churn)CAC / LTV / GROWTH ECONOMICS MODEL READY
INPUTS / EDIT SCENARIO
Values remain in this browser. Change any input to update the model instantly.
UNIT ECONOMICS / OUTPUTSimplified steady-state model with constant monthly churn.
CAC€150
LTV€1,530
LTV : CAC10.20×
PAYBACK2.5 mo
EXPECTED LIFETIME25.0 mo
GROSS PROFIT / MONTH€61
Churn at zero cannot produce a finite lifetime.
Cohort analysis is more reliable when retention changes over time.
GROWTH / COSTVisible CAC
Acquisition spend is divided by the new customers attributed to the same period.
RETENTIONSteady-state LTV
Lifetime value uses constant monthly churn, so cohort analysis should validate it.
LOCAL / PRIVATESensitive inputs stay local
Spend, revenue, margin and churn never leave the browser.
PLANNING MODEL / NOT ACCOUNTING, TAX, INVESTMENT OR FINANCIAL ADVICE