SaaS NRR Calculator
NRR measures whether your existing customer base grows or shrinks over time. NRR above 100% means existing customers expand faster than they churn — the holy grail of SaaS.
| Starting MRR | — |
| Expansion MRR (existing customer growth) | — |
| Downgrade MRR | — |
| Churned MRR | — |
| Ending MRR from cohort | — |
| Net Revenue Retention (ending / starting) | — |
| Gross Revenue Retention (only loss) | — |
| Annualized NRR (compound effect) | — |
Net Revenue Retention (NRR) is the single most important SaaS metric — it measures whether your existing customer base grows or shrinks over time, before adding new customers. Formula: NRR = (Starting MRR + Expansion - Downgrade - Churn) / Starting MRR × 100. NRR above 100% means existing customers expand faster than they churn — the holy grail of SaaS. NRR below 100% means you have a leaking bucket that new sales must refill.
Best-in-Class NRR Benchmarks
Public SaaS NRR benchmarks: 130%+ = best-in-class (Snowflake, Datadog, MongoDB). 120-130% = excellent (HubSpot, ServiceNow). 110-120% = strong (Salesforce, Adobe). 100-110% = healthy (most public SaaS). Under 100% = leaking bucket. Private SaaS targets: Series A 110%+, Series B 115%+, Series C+ 120%+. NRR is the single biggest valuation driver for SaaS — every 10 points of NRR adds ~1-2x revenue multiple.
Driving NRR Up — Tactical Levers
(1) Usage-based pricing: customers automatically expand as usage grows. Snowflake and Datadog reach 130%+ NRR primarily through usage-based models. (2) Multi-product expansion: cross-sell adjacent products to existing customers. Salesforce did this with Service Cloud, Marketing Cloud, etc. (3) Seat-based expansion: per-seat pricing means hiring customers add seats automatically. (4) Annual price increases: contractual 5-10% annual increases drive 5-10% NRR contribution. (5) Reduce churn: better onboarding, customer success, product engagement.
NRR vs GRR — Both Matter
Gross Revenue Retention (GRR) = (Starting MRR - Downgrade - Churn) / Starting MRR. GRR ignores expansion, measuring only what you keep. Healthy GRR: 90%+. Best-in-class GRR: 95%+. High NRR with low GRR is suspicious — it means you're masking churn with expansion from a smaller subset. Investors look at both. NRR 130% with GRR 80% (lots of churn AND lots of expansion) is less valuable than NRR 120% with GRR 95% (steady customer base + healthy growth). Source: OpenView Partners, Meritech Capital benchmarks.
Last updated May 2026. Sources: OpenView SaaS Benchmarks.