MRR Churn Calculator - Gross, Net, and Expansion-Adjusted
Five outputs from six inputs: gross MRR churn, net MRR churn, GRR, NRR, and how much expansion is offsetting your loss.
Revenue Churn and Retention Calculator
$
$
$
$
Gross MRR Churn
3.4%
Net MRR Churn
1.8%
Gross Retention (GRR)
96.6%
Net Retention (NRR)
98.2%
Expansion Offset
47%
Expansion Needed for NRR 100%
$17.0K/mo
You need $9.0K more expansion MRR per month to reach NRR 100%. See 2026 NRR benchmarks.
The Revenue Retention Formulas
Gross MRR Churn Rate
(Churned MRR + Downgrade MRR) / Starting MRR x 100Net MRR Churn Rate
(Churned MRR + Downgrade MRR - Expansion MRR) / Starting MRR x 100Gross Revenue Retention (GRR)
(Starting MRR - Churned MRR - Downgrade MRR) / Starting MRR x 100 [capped at 100%]Net Revenue Retention (NRR)
(Starting MRR - Churned MRR - Downgrade MRR + Expansion MRR) / Starting MRR x 1002026 NRR Benchmarks by ACV Band
| ACV Band | Median NRR | Top Quartile NRR | Median GRR |
|---|---|---|---|
| Enterprise (>$100K) | 118% | 130%+ | 94% |
| Mid-market ($25K-$100K) | 108% | 120% | 88% |
| SMB ($5K-$25K) | 97% | 110% | 85% |
| Low ACV (<$5K) | 90% | 100% | 80% |
Source: Bessemer Venture Partners, SaaS Capital (2026). Full NRR benchmark hub.