SaaS MRR & ARR Calculator
Work out your monthly and annual recurring revenue in seconds. Enter how many paying customers you have and your average revenue per user, then optionally add this month's movement to see net new MRR and growth.
How to calculate your MRR
- Enter your number of paying customers and average monthly revenue per user (ARPU).
- Optionally add this month's new, expansion and churned MRR.
- Read off your MRR, ARR, net new MRR and net MRR growth rate.
Examples
100 customers at $50/month
customers = 100, arpu = 50
MRR = $5,000 and ARR = $60,000
With monthly movement
new = $1,000, expansion = $500, churned = $300
Net new MRR = $1,200
Frequently asked questions
How is MRR calculated?
MRR is your number of paying customers multiplied by your average monthly revenue per user (ARPU). This calculator does customers times ARPU, then multiplies by 12 to get ARR.
What is the difference between MRR and ARR?
MRR is monthly recurring revenue, the predictable subscription revenue you collect each month. ARR is annual recurring revenue, simply MRR multiplied by 12. MRR is best for month-to-month tracking; ARR is common for annual contracts and board reporting.
What is net new MRR?
Net new MRR is new MRR from new customers plus expansion MRR from upgrades, minus churned MRR lost to cancellations and downgrades. It shows whether your recurring revenue grew or shrank this month.
Should I include one-time or usage fees in MRR?
No. MRR should only include recurring subscription revenue. Leave out one-time setup fees, professional services and unpredictable overage charges, since they are not recurring.
Is my data private?
Yes. The calculation runs entirely in your browser. Your customer counts and revenue figures are never uploaded, stored or shared.
Related tools
Churn Rate Calculator
Calculate customer churn and retention from customers lost. Add MRR to get gross and net revenue churn, including net negative churn, in your browser.
Customer LTV Calculator
Calculate customer lifetime value two ways. Use order value and frequency, or ARPU and monthly churn, to estimate margin-adjusted LTV.
CAC Calculator
Calculate customer acquisition cost from your marketing and sales spend and new customers. Add lifetime value to see your LTV:CAC ratio instantly.
SIP Calculator
Calculate SIP returns online. Enter your monthly investment, expected return and duration to see the future value, total invested and gains.
A/B Test Sample Size Calculator
Work out how many visitors per variant your A/B test needs. Set baseline rate, the lift you want to detect, power and significance to size the test.
A/B Test Significance Calculator
Check if your A/B test result is statistically significant. Enter visitors and conversions for each variant to get the p-value, z-score and verdict.