How does GRR differ from NRR?

Gross Revenue Retention (GRR) measures revenue retained excluding all expansion/upsell revenue and can never exceed 100%, whereas NRR includes upsells.

Updated: August 2026 • Verified v1.2

SaaS Net Revenue Retention (NRR) Cohort Decay Calculator

Finance & MathNew

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Cohort_ARR(Year_T) = Initial_ARR * (NRR / 100)^T

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Understanding Your Results

Generates a multi-year cohort compounding schedule, projects year-by-year ARR retention values, and benchmarks against venture capital top-quartile standards.

Practical Guidance & Next Steps

When NRR exceeds 100% (e.g. 120%), an annual cohort expands organically over time without additional acquisition spend, creating negative net churn.

What is this?

A financial forecasting tool that simulates customer cohort revenue trajectories over multiple years based on Net Revenue Retention (NRR).

How does it work?

1. Enter initial cohort ARR (e.g. $1,000,000). 2. Input annual Net Revenue Retention (NRR%) and Gross Revenue Retention (GRR%). 3. View year-by-year cohort value progression and benchmark quartile ratings.

Why use it?

Reveals the compounding value of customer expansion versus the hidden drag of customer logo churn.

Technical Scope & Calculation Limitations

Models compound cohort progression at a constant annual retention rate. In reality, cohort expansion may stabilize after year 3 or 4.

Frequently Asked Questions

For enterprise SaaS, >120% NRR is top decile (e.g., Snowflake, Datadog), 105%–120% is healthy, and under 100% indicates that churn exceeds account expansion.

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