SaaS / Revenue
MRR and ARR Calculator (with Net Revenue Retention)
Add up monthly recurring revenue from your price plans, with yearly plans counted at a twelfth, get ARR and revenue per account, and break down a month's change into new, expansion, contraction, and churned MRR with net and gross revenue retention.
MRR and ARR Calculator (with Net Revenue Retention): Each plan's MRR is its monthly price times its customers, with yearly plans divided by 12: 120 customers at 29, 45 at 79, and 30 yearly at 790 give 3,480 + 3,555 + 1,975 = 9,010 MRR and 108,120 ARR. The movement card adds new and expansion MRR and subtracts contraction and churn, and works out net and gross revenue retention. Runs 100% locally in your browser with zero server file uploads.
- Category
- Business & admin tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
| Plan | Price | Billed | Customers | MRR | Remove |
|---|---|---|---|---|---|
| 3,480 | |||||
| 3,555 | |||||
| 1,975 |
MRR, monthly recurring revenue, counts every subscription at its monthly value: yearly plans count as a twelfth of their price, and one-off fees, set-up charges, and usage overages are left out. ARR is 12 × MRR. The plans are saved in this browser.
Runs entirely in your browser
End MRR = start + new + expansion − contraction − churn. Net revenue retention leaves out new customers: above 100% means existing customers grew on their own. Gross retention counts only losses, so it can never be above 100%. A quick ratio above 4 is often called efficient growth.
Monthly and yearly figures
Retention in the movement card is for one month; over a year, monthly figures compound. A monthly net revenue retention of 101% is about 112.7% a year (1.01¹²).
Churn
To turn customer counts into a churn rate, use the churn rate calculator; revenue churn and customer churn often differ, because larger customers tend to stay longer.
How to use it
- List your plans with their price, billing period, and number of customers.
- Read MRR, ARR, and revenue per account.
- Enter a month's movements to see the end MRR, retention, and quick ratio.
Privacy & limitations
Your plans are saved in this browser only.
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Frequently asked questions
Do one-off fees count as MRR?
No: set-up fees, one-time purchases, and variable usage charges are left out, so MRR shows only revenue that repeats.
What is a good net revenue retention?
Above 100% means existing customers spend more over time; strong business software companies often report 110 to 130% a year.
Should discounts be included?
Yes: count what customers actually pay each month after discounts.
Free tool · runs in your browser · no account required