Decision tool
Net Revenue Retention Calculator
NRR and GRR from starting MRR plus expansion, contraction, churn, and reactivation.
Your inputs
Adjust the fields and review the result in this workbench.
Cite this calculator
Results use the inputs you enter and standard formulas documented on this page. Not professional advice.
Last reviewed: August 2026
Net Revenue Retention Calculator. (August 2026). Useful Tools Online. https://usefultoolsonline.com/nrr-calculator/
Interpretation
NRR vs GRR
NRR includes expansion and reactivation; GRR measures retention before upsell. Top SaaS benchmarks often cite NRR above 100%.
Avoid mistakes
Common mistakes
A few things that can lead to misleading results or poor decisions.
Mixing logo churn with revenue churn.
Using ending MRR as the starting cohort.
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