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SaaS Retention Calculator

Retention is the inverse of churn, but thinking in retention keeps the focus on the asset you have. Enter a cohort and how many remained to see period retention, its annualized equivalent, and the implied churn.

Inputs

Exclude new signups — this tracks the original cohort.

Results

Retention rate

96.0%

Churn rate
4.0%
Annualized retention
64.0%

A 98% monthly retention sounds excellent — annualized it's about 78%. Always annualize monthly retention to feel its real weight.

Formula

Retention = Retained ÷ Start · Annualized = Retention¹²

FAQ

Why exclude new customers?

Including them measures growth, not retention. Retention answers: of the customers we had, how many stayed?

Gross or net retention?

This is gross (logo) retention. For revenue-weighted views including expansion, use the revenue churn calculator.