Churn & Retention Rate Calculator
Customer and revenue churn, net revenue retention and the implied average customer lifetime in one view.
Formula
NRR above 100% is the holy grail — it means the existing base expands faster than it churns, so the company grows even if it never lands another customer. Logo churn and revenue churn diverge when you lose many small accounts or few large ones; track both, and watch lifetime = 1/churn.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Need churn & retention rate calculator results fast? Analysts, founders, traders and finance professionals use the Churn & Retention Rate Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About Churn & Retention Rate Calculator
Customer and revenue churn, net revenue retention and the implied average customer lifetime in one view. NRR above 100% is the holy grail — it means the existing base expands faster than it churns, so the company grows even if it never lands another customer. Logo churn and revenue churn diverge when you lose many small accounts or few large ones; track both, and watch lifetime = 1/churn. The governing relationship is NRR = (start MRR − churn + expansion) / start MRR; lifetime = 1/monthly churn. The Churn & Retention Rate Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use Churn & Retention Rate Calculator
- 1Enter Customers at start, Customers churned, Starting MRR (currency), Churned MRR (currency), Expansion MRR (currency) into the Churn & Retention Rate Calculator.
- 2The result is computed automatically using NRR = (start MRR − churn + expansion) / start MRR; lifetime = 1/monthly churn — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use Churn & Retention Rate Calculator?
- ✓Computes churn & retention rate calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the Churn & Retention Rate Calculator?+
Churn & Retention Rate Calculator uses NRR = (start MRR − churn + expansion) / start MRR; lifetime = 1/monthly churn. NRR above 100% is the holy grail — it means the existing base expands faster than it churns, so the company grows even if it never lands another customer. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the Churn & Retention Rate Calculator need?+
Enter Customers at start, Customers churned, Starting MRR (currency), Churned MRR (currency), Expansion MRR (currency) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the Churn & Retention Rate Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the Churn & Retention Rate Calculator?+
Logo churn and revenue churn diverge when you lose many small accounts or few large ones; track both, and watch lifetime = 1/churn.
What is the Churn & Retention Rate Calculator based on?+
The method follows authoritative sources: SaaS retention benchmarks (KeyBanc, OpenView). The formula and references are shown on the page so you can verify and cite the result.
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