MRR Calculator
Calculate Monthly Recurring Revenue from customer count and average revenue per account (ARPA), with monthly, annual, and ARPU readouts. Example: 120 customers at $49 ARPA = $5,880 MRR. Numbers never leave your device — every calculation runs locally in your browser.
How to Use the MRR Calculator
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Frequently Asked Questions
How is MRR calculated?
MRR = paying customers × average revenue per account (ARPA). Example: 120 customers at $49 ARPA gives $5,880 MRR. Defaults (100 × $50) show $5,000 Monthly, $60,000 Annual, and $50 ARPU side by side with 3 presets (Early, Growth, Enterprise).
What is net new MRR?
Net new MRR = new + expansion − churned − contraction MRR. Example: $800 new + $200 expansion − $300 churned − $100 contraction = $600 net new MRR for the month. Positive net new means the business is growing.
How do I convert MRR to ARR?
Multiply by 12: $5,880 MRR × 12 = $70,560 ARR. This annualizes the run-rate; it assumes no churn or growth, so treat it as a snapshot, not a forecast.
How are annual plans handled?
Divide the annual contract value by 12 to get normalized monthly MRR. A $1,200 annual plan contributes $100 MRR. This keeps monthly and annual customers comparable.
Is my revenue data stored or transmitted?
No. All calculations run locally in your browser. No customer counts, prices, or revenue figures leave your device.
Last updated October 2026