SaaS Metrics
Customer Retention Rate Calculator
Measure how much of the opening customer cohort remained after excluding new customers.
Result
Formula and methodology
Retention = (Ending customers − New customers) ÷ Beginning customers × 100
This calculator applies the stated formula directly. Use consistent accounting periods and definitions.
Worked example
500 beginning, 480 ending and 30 new customers gives 90% retention.
How to use
- Enter values from the same reporting period.
- Select Calculate.
- Review the result alongside the formula and limitations.
Frequently asked questions
What does this result measure?
Measure how much of the opening customer cohort remained after excluding new customers.
Can different definitions change the result?
Yes. Consistent definitions and reporting periods are essential when comparing results.
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Disclaimer: This simplified calculation is general information, not accounting, financial, tax or investment advice.