Churn Rate Calculator
Work out customer churn and retention for a period from two numbers.
- Free
- No sign-up to try
- Works as you type
Customer churn rate
Churn rate
3.00%
Retention rate
97.00%
- Churn = customers lost ÷ customers at the start × 100.
- Retention = 100% − churn.
Free, no sign-up to try. Save it as a live calculator you can share; an estimate from the numbers you enter, not financial advice. Check the result against your own records before you rely on it.
How it works
How the Churn Rate Calculator works
- 1
Enter your numbers
Every result updates as you type, with the formula shown under it.
- 2
Check the method
See how each number is worked out and what it assumes.
- 3
Save it as a Room
Share a live calculator: others can change the numbers and see the result update.
Worked example
What it makes
Example inputs
- Customers at the start of the period
- 800
- Customers lost during the period
- 24
Results
- Churn rate
- 3.00%
- Retention rate
- 97.00%
How it's calculated
- Churn = customers lost ÷ customers at the start × 100.
- Retention = 100% − churn.
- Assumes: New customers won during the period are left out, so they don't hide losses.
An estimate from the numbers you enter, not financial advice. Check the result against your own records before you rely on it.
Who it's for
Who uses it
SaaS teams
Track monthly churn the same way every month.
Subscription businesses
Share retention with the team.
Analysts
Check a churn figure quickly.
Good to know
What to consider
- New customers won in the period are left out so they don't hide losses.
Questions
About the Churn Rate Calculator
Monthly or annual churn?
Either: use customers at the start of the period and those lost during it. Keep the period the same when you compare.
Can I share the calculator with my team or a client?
Yes. The Room keeps the calculator live: anyone with the link can change the numbers and see the result update, with the method and assumptions on the same page.
Make your calculator now
Free, no sign-up to try. It becomes a Room you can edit, publish and share.
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