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SaaS MRR & Churn Calculator

Work out MRR, customer lifetime and lifetime value.

Free Tool No Registration Updated: Aug 10, 2026

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How the calculation works

MRR = customers × revenue per customer. Average lifetime = 1 ÷ churn rate. Lifetime value = revenue per customer × lifetime.

Frequently asked questions

What is a good value to cost ratio?

Many SaaS teams aim for 3 to 1 or better, but it depends on the business.

What counts as churn?

Customers who cancel in a month divided by customers at the start of that month.

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