SaaS Metrics Calculator: MRR, ARR, Churn and Net Revenue Retention
Track the numbers that matter for subscription businesses: MRR, ARR, churn, net revenue retention, ARPU and LTV.
Open the free SaaS & Subscription Metrics Calculator →What is the SaaS & Subscription Metrics Calculator?
MRR, ARR, churn, net revenue retention, ARPU and LTV for subscription businesses. It's completely free, needs no sign-up and works on any phone or computer.
Why it's helpful
- All core SaaS metrics
- Net revenue retention explained
- Monthly snapshot
Who it's for
SaaS founders, product managers and investors.
How to use it
- Enter this month’s customer movements and revenue changes.
💻 Open source: this tool is free and open source (MIT License). View the code on GitHub, download it and run it offline.
The bigger picture: Business
Running a business in the UAE means invoices with VAT, Corporate Tax, hiring costs and cash flow. Clear calculators and templates help founders and freelancers make better decisions before talking to an accountant.
What's changing: Since UAE Corporate Tax arrived, small businesses are paying closer attention to bookkeeping, invoices and planning, and Small Business Relief has been extended to tax periods ending on or before 31 December 2029.
Frequently asked questions
What is net revenue retention?
Revenue kept from existing customers after churn, upgrades and downgrades. Above 100% means growth even with no new customers.
Use the SaaS & Subscription Metrics Calculator free →
No sign-up · Runs in your browser
