Churn rate calculator
Calculate customer churn, retention, average customer lifetime and revenue churn for any period — with monthly and yearly equivalents.
Customer churn per month
0%
- Retention
- 0%
- Average lifetime
- —
- Monthly equivalent
- —
- Yearly equivalent
- —
Revenue
Customer churn = customers lost ÷ customers at the start of the period. New customers are not counted in the churn rate.
Out of 100 customers, still with you
Your churn Churn 25% lower
What the numbers mean
| Metric | Formula |
|---|---|
| Customer churn | Customers lost ÷ customers at the start of the period |
| Retention | 100% − customer churn |
| Average lifetime | 1 ÷ monthly churn (in months) |
| Monthly equivalent | 1 − (1 − period churn)1/months in period |
| Gross revenue churn | Revenue lost ÷ recurring revenue at start |
| Net revenue retention | (Revenue at start − revenue lost + expansion) ÷ revenue at start |
Churn is the input every growth plan depends on: it sets customer lifetime, lifetime value and therefore how much you can pay to acquire a customer. Use your churn in the LTV & Max CPA Calculator to turn it into a target price per action.