ARR Calculator
MRR × 12—the shorthand annualized run rate investors ask for in casual updates.
Open calculator →Net Revenue Retention Calculator
Ending expansion-adjusted recurring revenue indexed to starting baseline for the cohort window.
Overview
Use when logos look fine but dollar churn hides under expansion—or vice versa. Keep churn MRR inclusive of downgrade dollars per finance policy.
When to use this calculator
- When expansions, churn, and contraction all hit the same starting MRR pool
- Before you call the base “healthy” because new logos grew fast
- When you compare quarters with the same finance definitions
- When you explain net dollar retention to someone non-technical
Rule of thumb
Treat component parts—churn, downsell, expansion—as seriously as the headline percentage.
Terms used in this calculator
- NRR / Net Dollar Retention
- Whether recurring revenue grew or shrank on existing customers once you fold expansions, downgrades, and churn dollars together.
- GRR / Gross Revenue Retention
- Keeps recurring revenue minus churn/downgrades—not counting upsells—so you see core leakage before counting expansion separately.
- Churn rate (logo churn)
- What share of the starting cohort you lost inside the timeframe you framed.
Calculator
Net revenue retention
107.00%
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.
Formula
((starting MRR + expansion MRR − churn MRR) ÷ starting MRR) × 100.
Example calculation
Using the default example values from the JSON seed for this tool:
- Starting MRR (period)
- 200000
- Churn + contraction MRR lost
- 18000
- Expansion + upsell MRR gained
- 32000
Result: 107.00% (Net revenue retention)
How to interpret this result
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.
Common mistakes
- Double-counting expansion that should sit in a different bucket.
- Mismatching fiscal periods between starting MRR and movements.
- Using logo counts instead of revenue for B2B expansion math.
What to do next
GRR and expansion calculators separate upsell strength from churn hiding underneath.
How to improve this result
- Quantify churn-dollar reasons (downgrade vs cancel) before chasing expansion.
- Attach expansion plays to real usage milestones—not calendar reminders alone.
- Keep finance, success, and sales on one definition of “starting MRR.”
Recommended tools
- Baremetrics SaaS metrics and subscription analytics dashboards.
- ChartMogul Subscription analytics for revenue, churn, and cohort reporting.
- ProfitWell Pricing and retention resources for subscription businesses.
FAQ
- New logos included?
- No—NRR is base expansion economics; bookings from new logos belong elsewhere.
- What hides inside churn MRR?
- Cancellations, downgrades per your chart of accounts—not logo counts.
- >100 good?
- Often positive for SaaS—but verify gross retention so churn is not masked.
- FX noise?
- Multi-currency ARR converts can shift NRR without product change—annotate.
- Compare to GRR?
- GRR strips expansions deliberately—pair both monthly.
Related calculators
Churn Rate Calculator
Customers lost ÷ beginning cohort × 100 in the observation window—you define "lost."
Open calculator →Gross Revenue Retention Calculator
Share of starting MRR kept after churn and contraction-dollar losses—before deliberate upsell credit.
Open calculator →Affiliate disclosure
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