Churn Rate Calculator
Calculate customer churn rate. Enter the number of customers lost and your starting customer count to get an instant percentage.
Recommended Settings
Pro Tips
- •Churn rate measures the percentage of customers who cancel or stop paying over a given period
- •Lower churn rates are generally better - even small reductions compound significantly over time for subscription businesses
- •Calculate churn over consistent periods (monthly or annual) to make comparisons meaningful
- •Churn rate is often paired with retention rate, which measures the inverse - the percentage of customers who stayed
Most Popular
Most SaaS companies track churn rate monthly, using customer counts at the start of each month
When to Use This Tool
Track how many subscribers you're losing each month or quarter.
Understand the health of a subscription business by monitoring customer churn over time.
Report churn rate as a key metric in investor updates or board presentations.
Identify whether retention efforts are successfully reducing churn over time.
How It Works
Divide the number of customers lost during the period by the number of customers you had at the start of the period
Multiply the result by 100 to express it as a percentage
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Frequently Asked Questions
What counts as a "lost" customer?
Typically, a customer who cancels their subscription or stops being a paying customer during the period. Some businesses also count downgrades as partial churn, though this simple calculation treats churn as a binary lost/retained outcome.
What's a good churn rate for a SaaS business?
It varies by market segment, but monthly churn rates below 5% are often considered healthy for small business SaaS, while enterprise SaaS often targets under 1% monthly churn.
Is my data sent to a server?
No. All calculations happen instantly in your browser using JavaScript. Nothing you enter is transmitted anywhere.
How does churn rate relate to customer lifetime value?
Churn rate is often used to estimate average customer lifespan (roughly 1 ÷ churn rate), which feeds directly into customer lifetime value calculations.