Revenue Churn Calculator

Revenue churn tells a richer story than logo churn, because customers aren't equal. Expansion revenue (upsells, seat growth) can offset losses — sometimes entirely, producing negative net churn, where revenue grows even with a flat customer base.

Inputs

MRR at period start

MRR lost to churn/contraction

Expansion MRR

Upgrades, upsells and seat growth from existing customers.

Results

Net revenue churn

2.0%

Gross revenue churn: 5.0%
Net revenue retention: 98.0%
End MRR (excl. new logos): $41,250

Formula

Net Revenue Churn = (Churned MRR − Expansion MRR) ÷ Starting MRR

FAQ

Why track gross and net separately?

Net can look great while gross deteriorates — expansion masking churn is a classic late-stage surprise. Track both.

Does net revenue retention include new customers?

No — NRR measures the existing cohort only. That's what makes it a clean product/market-fit signal.