MRR Calculator
Free CalculatorTurn your paying customers and average revenue per account into monthly recurring revenue and ARR β instantly and privately.
100% private
Runs in your browser β no numbers leave your device.
Your numbers
Number of paying customers or active subscriptions.
Average revenue per account, per month (ARPA).
Monthly recurring revenue (MRR)
US$15,000
Paying customers Γ average revenue per account β your predictable monthly base.
Annual recurring revenue (ARR)
US$180,000
MRR Γ 12 β the annualised run rate of your recurring revenue.
How it works
Count customers
Enter your total paying customers or active subscriptions.
Add ARPA
Enter the average monthly revenue per account.
Read your MRR
Customers Γ ARPA gives your monthly recurring revenue.
See ARR
MRR Γ 12 shows your annual recurring run rate.
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How to calculate MRR (monthly recurring revenue)?
MRR β monthly recurring revenue β is the predictable revenue your subscription business earns every month. The simplest way to calculate it is paying customers Γ average revenue per account (ARPA): if 500 customers each pay $30 a month, your MRR is $15,000. ARR (annual recurring revenue) is simply MRR Γ 12, or $180,000 in that example β the annualised run rate you would earn if nothing changed.
Recurring revenue is the core SaaS metric because it is predictable and compounding: unlike one-off sales, MRR carries forward month to month, so every new customer stacks on top of the last. Tracking MRR and ARR tells you how fast you are really growing, powers your runway and valuation maths, and turns marketing and product decisions into revenue you can forecast. This calculator gives you both figures instantly from two inputs.