Free SaaS metrics tools

Quick calculators for the numbers every SaaS runs on. No signup; nothing you type leaves your browser.

Churn Rate Calculator

Monthly and annualized customer churn from two numbers.

ARPA, margin and churn in; lifetime value out.

Plans and customer counts in; MRR, ARR and a 12-month projection out.

One period of movements in; NRR and GRR out, with the gap explained.

MRR and growth in; a valuation range out, caveats included.

Cash, revenue and costs in; net burn, runway and your zero date out.

MRR and ARR across ten currencies, at real reference rates.

Your revenue, measured in hot dogs, MacBooks and Lambos.

The glossary defines every metric these calculators produce, with the formula, a worked example and the mistakes that quietly break it.