MRR Calculator
Calculate your Monthly Recurring Revenue from pricing tiers, project MRR growth over 12 months, or forecast ARR with churn. Works with any currency.
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How to Use This Calculator
Tab "Calculate MRR"
Enter up to 5 pricing tiers with a tier name, monthly price, and number of subscribers. The calculator computes your total MRR (Monthly Recurring Revenue), ARR (Annual Recurring Revenue), and ARPU (Average Revenue Per User). Use this to get a clear snapshot of your current subscription revenue.
Tab "MRR Growth"
Enter your current MRR and monthly growth rate. The result shows a 12-month projection table with your MRR at each month, highlighting months 6 and 12. This assumes gross growth without accounting for churn.
Tab "Revenue Forecast"
Enter your current MRR, monthly growth rate, and monthly churn rate. The calculator projects your ARR at 12, 24, and 36 months, showing both the with-churn and without-churn scenarios side by side so you can see the true cost of customer attrition.
The Formulas
MRR = Sum of (Subscribers × Monthly Price) for each tier
Annual Recurring Revenue (ARR):
ARR = MRR × 12
Average Revenue Per User (ARPU):
ARPU = MRR / Total Subscribers
Projected MRR (with growth only):
MRR at month n = Current MRR × (1 + Growth Rate)^n
Projected MRR (with growth and churn):
MRR at month n = Current MRR × (1 + Growth% − Churn%)^n
All calculations are universal and pre-tax. Growth and churn rates are applied monthly and compound each period. Results are estimates assuming constant rates.
Worked Examples
Example 1 — Calculate MRR from 3 pricing tiers
A SaaS company has three plans: Basic at $29/mo with 200 subscribers, Pro at $79/mo with 80 subscribers, and Enterprise at $299/mo with 15 subscribers.
Enterprise customers represent only 5% of subscribers but contribute 27% of MRR. ARPU of $56.29 is pulled up by the enterprise tier.
Example 2 — MRR growth projection at 10% monthly
Starting from $16,605 MRR with 10% month-over-month growth and no churn.
At 10% monthly growth, MRR more than triples in 12 months. This rate is typical for early-stage SaaS companies with strong product-market fit.
Example 3 — Revenue forecast with churn: $50K MRR, 8% growth, 4% churn
A company with $50,000 MRR growing at 8% per month but losing 4% of revenue to churn each month. Net monthly rate = 8% − 4% = 4%.
At 8% growth and 4% churn, $50K MRR reaches roughly $960K ARR in 12 months. Without churn, it would be $1.51M ARR — churn costs over $550K in annual revenue. Reducing churn by even 1 percentage point has an outsized impact on long-term revenue.
Understanding SaaS Revenue Metrics
What Is MRR?
MRR (Monthly Recurring Revenue) is the total predictable revenue your subscription business earns each month. It is the single most important metric for SaaS companies because it measures the health and trajectory of your recurring revenue stream. MRR excludes one-time fees, setup charges, and variable usage-based billing.
MRR vs ARR
ARR is simply MRR multiplied by 12. Use MRR for month-to-month operational decisions and ARR for annual planning, investor reporting, and company valuation. Most SaaS valuations are expressed as a multiple of ARR.
Why Churn Matters
Churn is the silent revenue killer. Even a small monthly churn rate compounds dramatically over time. A 5% monthly churn means you lose roughly 46% of your revenue base each year. The difference between 3% and 5% monthly churn can mean millions in lost ARR over 24-36 months. Reducing churn is often more impactful than increasing new sales.
Net Revenue Retention
The gold standard metric combines churn with expansion revenue. Net Revenue Retention (NRR) above 100% means your existing customers generate more revenue over time through upgrades and add-ons, even after accounting for churn. Top SaaS companies achieve NRR of 120-140%.