Cohort LTV Calculator

Paste a cohort retention curve (% of the original cohort still active each month) to get LTV + payback.

Avg rev / active customer / mo ($)

CAC ($)

Retention (12 mo, comma %, start at 100)

12-month LTV—

Payback month—

24-month projection—

LTV : CAC—

Cumulative revenue per original-cohort customer = sum(retention% × ARPU). The 24-mo projection extends the last month-over-month decay rate.