Free Net Revenue Retention (NRR) Calculator

Quick answer

Net Revenue Retention shows how recurring revenue from an existing customer cohort changes after expansion, contraction, and churn, excluding new customers.

Formula

NRR = (starting MRR + expansion MRR − contraction MRR − churned MRR) ÷ starting MRR × 100

Example

Starting with 00,000 MRR, adding $8,000 expansion, losing $3,000 contraction and $5,000 churn produces 100% NRR.

How to interpret it

NRR above 100% means expansion offsets losses in that cohort; below 100% means the installed base is shrinking before new-logo growth.

Methodology, assumptions and limitations