Baremetrics
SaaS metrics and subscription analytics dashboards.
Visit tool →Ending expansion-adjusted recurring revenue indexed to starting baseline for the cohort window.
Results are simplified estimates for educational purposes only and should not be treated as financial, accounting, legal, or tax advice. See our disclaimer for details.
Use when logos look fine but dollar churn hides under expansion—or vice versa. Keep churn MRR inclusive of downgrade dollars per finance policy.
((starting MRR + expansion MRR − churn MRR) ÷ starting MRR) × 100.
Using the default example values from the JSON seed for this tool:
Result: 107.00% (Net revenue retention)
Net revenue retention shows if your existing base grows from expansions net of churn and contraction.
Above 100% means expansion outpaced losses—common in strong land-and-expand motions.
Keep starting MRR, churn, and expansion in the same fiscal period.
Treat component parts—churn, downsell, expansion—as seriously as the headline percentage.
GRR and expansion calculators separate upsell strength from churn hiding underneath.
Recommended tools
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SaaS metrics and subscription analytics dashboards.
Visit tool →Subscription analytics for revenue, churn, and cohort reporting.
Visit tool →Pricing and retention resources for subscription businesses.
Visit tool →MRR × 12—the shorthand annualized run rate investors ask for in casual updates.
Open calculator →Customers lost ÷ beginning cohort × 100 in the observation window—you define "lost."
Open calculator →Share of starting MRR kept after churn and contraction-dollar losses—before deliberate upsell credit.
Open calculator →Disclosure: Some links on this page may be affiliate links. If you sign up or make a purchase through these links, FounderCalc may earn a commission at no extra cost to you. We only recommend tools that are relevant to the calculator topic.