MRR Calculator
Add up monthly recurring revenue across your plans and see how it moved this month. List each plan with its customers and monthly price – yearly plans divided by twelve – and enter this month’s new, expansion, contraction and churned MRR. The calculator shows MRR, ARR, the number of customers, average revenue per user, net new MRR, the month’s growth and net revenue retention.
- Runs in your browser
- No sign-up
- Free to use
For yearly plans, enter the yearly price ÷ 12.
How to use MRR Calculator
- List each plan: name | customers | monthly price.
- Enter new, expansion, contraction and churned MRR.
- Read MRR, ARR and ARPU.
- Check growth and retention.
MRR Calculator features
Plans
Revenue per plan.
MRR movements
New, expansion, contraction, churn.
ARPU
Average revenue per customer.
Net revenue retention
For the month.
Paste from spreadsheets
Tab or | separated lines.
Any currency
Choose from 30+ currencies; amounts are formatted for it.
When to use MRR Calculator
- Monthly SaaS reporting.
- Board and investor updates.
- Checking billing exports.
- Pricing plan analysis.
MRR Calculator FAQ
What counts as MRR?
Recurring subscription revenue normalised to a month. Leave out one-off setup fees and usage overages unless they recur predictably.
How do I include yearly plans?
Divide the yearly price by 12.
What is net revenue retention?
Revenue from last month’s customers this month, including upgrades and losses, as a share of last month’s MRR.
What is net new MRR?
New + expansion − contraction − churned MRR.
Reading MRR movements
MRR alone hides what happened. Splitting the change into new, expansion, contraction and churn shows whether growth comes from selling more, from customers upgrading or is being eaten by losses.
Net revenue retention above 100% means existing customers grow revenue even without new sales.
Use consistent definitions over time: count customers and revenue the same way every month, separate one-off fees from recurring revenue, and compare cohorts rather than mixing old and new customers.
Benchmarks from other companies are only a rough guide, because business models, prices and customer types differ. Your own trend from month to month is usually more informative than a comparison with an industry average.