Two retention metrics that look similar and tell different stories. NRR includes expansion. GRR does not. Best-in-class operators publish both.
Last updated: 2026-04-01
The percentage of recurring revenue retained from existing customers, after expansion, contraction, and churn. Above 100% means the existing base grew on its own.
Best for telling the growth story to investors. Negative net churn (NRR above 100%) is what enables the most efficient SaaS businesses to compound.
The percentage of recurring revenue retained, counting only churn and contraction. No credit for expansion. The number is always between 0% and 100%.
Best for measuring product and customer health. GRR tells you whether customers stay, separate from whether they spend more.
NRR % = (Starting MRR + Expansion - Contraction - Churn) / Starting MRRBest-in-class SaaS hits 130% or more. Median venture-backed B2B SaaS sits around 106% in recent ChartMogul reporting.
GRR % = (Starting MRR - Contraction - Churn) / Starting MRRBest-in-class GRR is 90% or higher for enterprise SaaS, 80%+ for mid-market, and 70%+ for SMB.
| Criteria | NRR | GRR |
|---|---|---|
| Includes expansion | Yes | No |
| Can exceed 100% | Yes | No (caps at 100%) |
| Best-in-class benchmark | > 130% (enterprise) | > 90% (enterprise) |
| Median (B2B SaaS, 2024) | 106% across stages | ~80-90% by stage |
| Best for | Investor reporting, growth efficiency | Product and customer health |
| Hides | The size of the churn problem | The upside from expansion |
| Pairs with | ARR growth, LTV calculation | Cohort retention curves, customer health scores |
| Sensitivity | High. A few large expansions move it | Low. Smoother because no expansion noise |
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Score your own data with both frameworks. Compare results and pick the one that fits your team.
NRR includes expansion. GRR doesn't. NRR can be over 100%. GRR can't.
Both, depending on the question. NRR for growth efficiency and investor reporting. GRR for product and retention health. Best-in-class operators publish both side by side.
Above 100% is healthy. Above 110% is strong. Above 130% is world-class. Below 100% means the existing base shrank, which is a sign your acquisition is offsetting churn but not creating compounding growth.
Yes, and it's a common pattern in expansion-heavy businesses. A 15% gross loss is offset by 45% expansion. The NRR looks great. The GRR tells you customers leave faster than the NRR alone reveals. Both numbers are real.
The simple LTV formula uses gross churn. A more accurate LTV uses net retention. If NRR is above 100%, the right LTV calculation produces a much larger number than gross-churn-based LTV. That's why expansion-heavy SaaS commands higher valuations per dollar of MRR.