Churn Rate Calculator
Customer and revenue churn, plus a properly compounded annualized rate. Free, no signup.
Customer (logo) churn
The most commonly cited churn figure — the share of customers who left during a period.
Revenue churn
What buyers usually care about more than logo churn — measured in MRR, not customer count.
How do you calculate monthly churn rate?
Divide the number of customers lost during the month by the number of customers you had at the start of the month, then multiply by 100.
How is annualized churn different from monthly churn times 12?
Simply multiplying monthly churn by 12 overstates the real annual figure, because it doesn't account for the shrinking customer base — fewer customers remain to churn each following month. The correct annualized formula compounds the monthly rate: 1 − (1 − monthly churn)^12.
What's the difference between customer churn and revenue churn?
Customer (logo) churn counts how many customers left, regardless of what they were paying. Revenue churn measures the dollar impact — losing your biggest customer moves revenue churn far more than losing your smallest one, even though both count as one lost customer in logo churn.
What is negative net revenue churn?
It's when expansion revenue (upgrades, add-ons) from existing customers outweighs the revenue lost to cancellations and downgrades in the same period — meaning revenue from existing customers grew even after accounting for churn. It's considered a strong signal of a healthy, sticky product.
What's a good churn rate for a micro SaaS?
There's no universal number, but under 3-5% monthly customer churn is generally considered healthy for small SaaS products; anything consistently above 7-10% monthly is usually a sign of a retention problem worth investigating before it's worth scaling further.
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