Churn Rate Calculator.

This calculator implements three distinct churn and retention metrics. Logo churn divides customers lost by customers at period start, giving you the raw customer attrition rate. Revenue churn divides MRR lost from downgrades and cancellations by starting MRR, weighting the loss by account size. Net revenue retention combines expansion, contraction, and churn into a single percentage that shows whether your existing customer base is growing or shrinking.

Period normalization uses compounding conversion rather than simple division. A ten percent quarterly churn rate does not equal three point three percent monthly churn. The correct monthly equivalent is one minus the cube root of one minus the quarterly rate, which accounts for the fact that churn compounds within each month of the quarter. This distinction is critical for accurate forecasting and benchmark comparison.

Implied customer lifespan is computed as the inverse of monthly churn rate. At five percent monthly churn, the average customer stays twenty months. At two percent, lifespan extends to fifty months. This metric connects directly to lifetime value calculations, and the calculator provides a cross-link to the LTV calculator so you can immediately see the revenue impact of your churn rate.

Benchmark comparisons use published data from OpenView, KeyBanc, and Bessemer segmented by company stage. NRR grading follows the widely adopted tiers where sub-ninety percent is poor, ninety to one hundred percent is below average, one hundred to one hundred ten percent is good, one hundred ten to one hundred twenty percent is great, and above one hundred twenty percent is best-in-class. These benchmarks help you contextualize your metrics against peers at a similar scale.