Free Tool

MRR Calculator for SaaS

Enter your numbers below. MRR, ARR, net growth rate, and churn rate — calculated instantly.

Your numbers
Paying subscribers right now
$
ARPU — blended across all plans
Cancelled in the last 30 days
Results
MRR
Monthly Recurring Revenue
ARR
Annual Run Rate (MRR × 12)
Monthly Churn Rate
Churned ÷ total customers
Net MRR Growth Rate
Retained MRR vs. prior month

How the formulas work

MRR

Active customers × ARPU

Monthly Recurring Revenue is the total normalized monthly revenue from all active paying subscribers. Annual plans count at 1/12th their yearly value.

ARR

MRR × 12

Annual Run Rate is your current MRR extrapolated to a 12-month figure. It assumes your subscriber base stays flat — it's a snapshot, not a forecast.

Monthly churn rate

Churned customers ÷ (Active + Churned) × 100

The percentage of your customer base that cancelled this month. Under 2% monthly is healthy for early-stage SaaS. Anything above 5% needs attention.

Calculate your churn rate →

Net MRR growth rate

(MRR lost from churn ÷ MRR at start of month) × 100

How much MRR you kept this month vs. the prior period, expressed as a retention rate. A positive net growth rate means you're growing despite churn.

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Further reading: How to Calculate MRR — Formula & Examples  ·  How to Calculate Customer Lifetime Value  ·  How to Reduce SaaS Churn  ·  Free Churn Calculator  ·  Free LTV Calculator

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