MRR & ARR Calculator
Normalize a mixed subscription book (monthly + annual + quarterly) into true MRR and ARR — the SaaS topline.
Formula
The cardinal MRR sin is counting an annual prepayment as one month's revenue — always normalize to the monthly run-rate. Exclude one-time setup fees and usage overages from MRR; they're real revenue but not recurring. ARR = MRR × 12 only when the book is stable, not mid-ramp.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Need mrr & arr calculator results fast? Analysts, founders, traders and finance professionals use the MRR & ARR Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About MRR & ARR Calculator
Normalize a mixed subscription book (monthly + annual + quarterly) into true MRR and ARR — the SaaS topline. The cardinal MRR sin is counting an annual prepayment as one month's revenue — always normalize to the monthly run-rate. Exclude one-time setup fees and usage overages from MRR; they're real revenue but not recurring. ARR = MRR × 12 only when the book is stable, not mid-ramp. The governing relationship is MRR = monthly rev + annual rev/12 + add-ons; ARR = MRR × 12. The MRR & ARR Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use MRR & ARR Calculator
- 1Enter Monthly plan subscribers, Monthly plan price (currency), Annual plan subscribers, Annual plan price (per year) (currency), Add-on monthly revenue (currency) into the MRR & ARR Calculator.
- 2The result is computed automatically using MRR = monthly rev + annual rev/12 + add-ons; ARR = MRR × 12 — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use MRR & ARR Calculator?
- ✓Computes mrr & arr calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the MRR & ARR Calculator?+
MRR & ARR Calculator uses MRR = monthly rev + annual rev/12 + add-ons; ARR = MRR × 12. The cardinal MRR sin is counting an annual prepayment as one month's revenue — always normalize to the monthly run-rate. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the MRR & ARR Calculator need?+
Enter Monthly plan subscribers, Monthly plan price (currency), Annual plan subscribers, Annual plan price (per year) (currency), Add-on monthly revenue (currency) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the MRR & ARR Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the MRR & ARR Calculator?+
Exclude one-time setup fees and usage overages from MRR; they're real revenue but not recurring. ARR = MRR × 12 only when the book is stable, not mid-ramp.
What is the MRR & ARR Calculator based on?+
The method follows authoritative sources: SaaS metrics standards (Bessemer, ChartMogul). The formula and references are shown on the page so you can verify and cite the result.
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