MRR & ARR Calculator
Free MRR and ARR calculator — turn your customers and pricing into monthly and annual recurring revenue, plus a 12-month projection.
120 customers at $199/mo is $23,880 MRR / $286,560 ARR. At 8% monthly growth you'd reach $721,607 ARR within a year.
Grow MRR without losing track of it.
AMW CRM keeps your customers, pipeline, and recurring revenue in one place — so your MRR is always accurate, never guessed.
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How to Use This Calculator
Enter your number of active customers and average revenue per customer per month.
Add your monthly growth rate to project forward.
See MRR, ARR, and where you’ll be in 12 months at that growth.
Frequently Asked Questions
How do you calculate MRR and ARR?
MRR (monthly recurring revenue) = active customers × average revenue per customer per month. ARR (annual recurring revenue) = MRR × 12. They are the core metrics for any subscription business.
What is the difference between MRR and ARR?
They measure the same recurring revenue over different periods — MRR monthly, ARR annually. Early-stage and monthly-billed businesses tend to track MRR; later-stage and annually-contracted SaaS lead with ARR.
Should one-time fees count toward MRR?
No. MRR should only include predictable, recurring subscription revenue. One-time setup fees, services, and overages are excluded so the number reflects sustainable run-rate revenue.
What is a good MRR growth rate?
It varies by stage, but early-stage SaaS often targets 10–15% month-over-month, while larger companies grow more slowly in percentage terms. Even 5–8% monthly compounds dramatically over a year.
How do I keep MRR accurate as I grow?
Calculate it from live customer and subscription data in your CRM rather than a spreadsheet. Manual tracking drifts as you add plans, upgrades, downgrades, and churn — and investors notice when the numbers do not reconcile.
Why Use This Calculator
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Calculate MRR and ARR instantly
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Project recurring revenue 12 months out
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Model the impact of your growth rate
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Get the metrics investors ask for first
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