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Customer Retention Rate

Calculate Customer Retention Rate instantly with the exact formula and a worked example.

Customer Retention Rate

End of period
New
At start
Retention
90%
((End − New) / Start) × 100Calculate Customer Retention Rate instantly with the exact formula and a worked example.

More about: Customer Retention Rate

What it calculates

The “Customer Retention Rate” calculator computes Retention in % from 3 parameters: end of period, new, at start.

Applied in business management, unit economics, and financial modeling.

Example calculation

With parameters End of period = 110, New = 20, At start = 100 the result is 90 % (((End − New) / Start) × 100).

How to use

  1. Enter end of period, new and at start — each field above is adjustable with a slider.
  2. Retention (%) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Customer Retention Rate calculated?
The Customer Retention Rate calculator computes Retention (in %) from end of period, new, at start. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Customer Retention Rate calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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