MRR & ARR Calculator
Enter your paying customers and average monthly revenue per customer to get MRR and ARR.
How to use this calculator
- 1Enter your number of paying (subscription) customers.
- 2Enter the average monthly revenue per customer.
- 3Read your MRR — and the ARR it annualises to.
How the MRR & ARR Calculator works
Monthly Recurring Revenue is the predictable subscription income you earn each month; Annual Recurring Revenue is simply that figure times twelve. Together they’re the heartbeat of any subscription business, because recurring revenue is far more valuable and forecastable than one-off sales.
To calculate MRR, multiply paying customers by average monthly revenue, normalising annual plans to a monthly figure first. Keep one-time fees and overages out of it — MRR is recurring revenue only, which is what makes it a clean signal of growth.
Ready to bill for it?
Create a professional invoice in one sentence with Aviy’s free AI invoice generator.
Create an invoice freeFrequently asked questions
What are MRR and ARR?
Monthly Recurring Revenue is the predictable subscription revenue you earn each month; Annual Recurring Revenue is simply MRR × 12. They are the core metrics of a subscription business.
How do I calculate MRR?
Multiply your paying customers by the average monthly revenue per customer. Normalise annual plans to a monthly figure (annual price ÷ 12) before adding them in.
Does MRR include one-off fees?
No — MRR is recurring subscription revenue only. Exclude one-time setup fees, overages, and discounts should be netted out.
Related reading
The Ultimate Guide to Growing a Consulting Business
Growing a consulting business takes more than expertise. Learn pricing, lead gen, systems, hiring and cash flow to scale your firm profitably in 2026.
Continue Reading
Monthly Revenue Planning for Small Businesses: A Practical Guide
Monthly revenue planning made simple: forecast income, set targets, smooth cash flow and get paid on time with practical steps, templates and examples.
Continue Reading
Monthly Revenue Calculator: How to Calculate Monthly Revenue
Use a monthly revenue calculator to work out your monthly income fast. Formula, worked examples, benchmarks and tips to track revenue every month.
Continue Reading
Managing Repeat Clients for Long-Term Revenue
Managing repeat clients well is the cheapest growth lever you have. Learn a practical framework to turn one-off buyers into reliable long-term revenue.
Continue Reading
Website Terms and Conditions Template Explained
A clear website terms and conditions template explained - the clauses to include, a worked example, common mistakes and best practices for your site.
Continue Reading