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MRR & ARR Calculator

Calculate monthly and annual recurring revenue, net new MRR and growth from new, expansion, contraction and churned MRR.

How to use

  1. 1Enter your starting MRR.
  2. 2Enter new, expansion, contraction and churned MRR for the month.

How it's calculated

Net new MRR = new + expansion − contraction − churned. Ending MRR = starting + net new. ARR = MRR × 12. Net revenue retention = (start + expansion − contraction − churn) ÷ start.

Frequently asked questions

What counts as MRR?

Normalized monthly subscription revenue. Annual plans count as one-twelfth per month; one-time fees don't count.

What is net revenue retention (NRR)?

How much revenue existing customers bring compared with a period ago, including upgrades and losses. Over 100% means growth even without new customers.

Is ARR just MRR × 12?

For monthly-billed subscriptions, yes. Some companies calculate ARR from annual contracts directly.