1. Home
  2. Tools
  3. SaaS metrics
  4. Churn Rate Calculator

Churn Rate Calculator

Calculate monthly customer churn, annualized churn, revenue churn and average customer lifespan for any subscription business.

Free, no sign-upRuns in your browserSaaS metrics

Customers this month

Revenue (optional)

Leave the revenue fields empty to skip revenue churn.

Churn results

-

Monthly customer churn rate

Annualized churn-
Average customer lifespan-
Revenue churn-
Revenue lost per year at this rate-

Enter your customer counts to see your churn rate.

What churn rate tells you

Churn rate is the share of customers who cancel in a given period. It matters for any subscription or recurring revenue business, because every lost customer has to be replaced before you can grow. Small differences add up fast: a few points of monthly churn can mean losing a large share of your customer base each year.

How the calculation works

  • Monthly churn: customers lost during the month divided by customers at the start.
  • Annualized churn: the monthly rate compounded over 12 months, which is more accurate than multiplying by 12.
  • Average lifespan: one divided by the monthly churn rate, in months.
  • Revenue churn: MRR lost divided by MRR at the start. It can differ from customer churn when large or small accounts leave.

Churn benchmarks

  • SMB SaaS: 3 to 7% monthly is common. Aim for under 3%.
  • Enterprise SaaS: under 1% monthly.
  • Consumer subscriptions: 5 to 10% monthly.
  • Negative net churn, where expansion revenue outweighs lost revenue, is the goal for many SaaS companies.

What lowers churn fastest

  • Strong onboarding, since the first 30 days shape the whole relationship.
  • A clear moment of value in the first session.
  • Save offers tied to the real reason for leaving: price, features or fit.
  • Annual billing options, which reduce month-to-month cancellations.

Frequently asked questions

Should new customers from this month count?

No. Use customers at the start of the month as the base, and only count cancellations from that group. Mixing in new sign-ups makes churn look lower than it is.

Why is revenue churn different from customer churn?

Customers pay different amounts. If a few large accounts leave, revenue churn will be higher than customer churn. If mostly small accounts leave, it will be lower.

Related tools

All tools
LTV:CAC Ratio CalculatorCompare customer lifetime value with acquisition cost to see whether your growth is efficient, break-even or burning cash.Subscription Churn ForecasterForecast your subscriber base over 12 months from your churn rate, monthly signups and reactivations, and see where growth levels off.CAC Payback Period CalculatorCalculate how many months it takes a new customer to pay back what you spent to acquire them, based on gross margin.Cohort LTV CalculatorEstimate discounted customer lifetime value from revenue per customer, gross margin and monthly churn, and see a safe maximum CAC.SaaS MRR Growth CalculatorForecast your MRR and ARR run rate over the next 12 months from monthly new, expansion and churned MRR.Net Revenue Retention CalculatorCalculate net and gross revenue retention for a customer cohort from starting MRR, expansion, contraction and churn.