SaaS MRR Calculator
Calculate Monthly Recurring Revenue, ARR, churn impact, and net new MRR. Essential metrics for any subscription business.
Part of our Business Calculators collection.
SaaS MRR Calculator
Free online calculator
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< 2% is healthy for B2B SaaS
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How to Use This Calculator
- 1
Enter active customer count and ARPU.
- 2
Set monthly churn and growth rates.
- 3
See MRR, ARR, net new MRR, and LTV.
SaaS Revenue Metrics
MRR = Customers × Avg Revenue per Customer ARR = MRR × 12 Churned MRR = MRR × Churn Rate New MRR = MRR × Growth Rate Net New MRR = New MRR − Churned MRR LTV = Avg Revenue / Monthly Churn Rate
Example Calculation
Example: 100 customers at $99/month, 2% churn
Inputs
customers: 100avgMonthlyRevenue: 99monthlyChurnRate: 2monthlyGrowthRate: 5
Result
MRR: $9,900 | ARR: $118,800 | LTV: $4,950
100 × $99 = $9,900 MRR. LTV = $99 / 0.02 = $4,950.
Frequently Asked Questions
What is a healthy SaaS churn rate?
For B2B SaaS: under 1% monthly (under 12% annual) is excellent. 2% monthly is acceptable. Over 3% monthly requires urgent attention. B2C SaaS typically has higher churn (5–8%/month).
What is the difference between MRR and ARR?
MRR (Monthly Recurring Revenue) is the normalised monthly subscription revenue. ARR (Annual Recurring Revenue) = MRR × 12. ARR is preferred for annual contract businesses; MRR for month-to-month.
What is Net Revenue Retention (NRR)?
NRR measures revenue retained from existing customers including expansions and contractions. NRR > 100% means existing customers are growing faster than churning — the hallmark of elite SaaS companies.