Metric tools
Know the number.
Understand what’s behind it.
Three business metrics, with their assumptions in the open. Try an example, enter your own numbers, and see exactly how the result is calculated.
Recurring revenue
MRR calculator
Normalize monthly and annual subscriptions into monthly recurring revenue, with an annualized run rate and a formula you can check.
Open calculatorCustomer expansion
Net revenue retention calculator
Measure recurring revenue retained from existing customers after expansion, reactivation, contraction, and churn. Keep new business out of the calculation.
Open calculatorCustomer retention
Customer churn calculator
Calculate the share of a starting customer cohort that has left by period end. Separate customer loss from revenue loss.
Open calculatorNo signup required. These tools use your inputs, not industry benchmarks. Each definition links to its source.