MRR Calculator
Calculate your Monthly Recurring Revenue, forecast next month's growth, and uncover the revenue ceiling your current churn is imposing.
Your Subscription Metrics
Currently paying subscribers (exclude free trials)
Monthly price per customer — use a blended average if multi-plan
Average new paying customers added per month
% of subscribers who cancel each month. Industry benchmark: <2% is excellent, 5%+ is risky.
Add upgrade / upsell revenue to see its impact on your growth trajectory.
Current MRR
$9,900
ARR: $118,800
Steady, positive MRR growth. You're acquiring more than you're churning. Look for expansion revenue opportunities — an extra upgrade or upsell can accelerate this further.
This Month's MRR Movement
Next Month Forecast
Projected MRR
$10,593
+7.0% MoM
Projected ARR
$127,116
annualised
Your Revenue Ceiling
Maximum MRR if current new customers and churn stay constant
$33,000
$23,100 more headroom to grow
Breaking this ceiling requires either more new customers or lower churn. Halving your churn rate doubles this ceiling.
Monthly Churn Benchmarks
Your current churn: 3% / month
Every missed lead is lost MRR
More qualified leads mean more paying customers. LeadInbox centralises every lead source so nothing falls through the cracks.
How This Calculator Works
Enter subscription metrics
Active customers, monthly price (ARPU), new customers per month, and your monthly churn rate.
See MRR & movement
Instantly see current MRR, ARR, New MRR, Churned MRR, and Net New MRR — all in one view.
Discover your ceiling
See the maximum MRR your business can reach with current churn — and what it takes to break through it.
The MRR Formulas Explained
All calculations use standard SaaS industry formulas — fully transparent.
Current MRR
MRR = Active Customers × ARPU
Multiply your paying customer count by the average monthly revenue per user. Use a blended ARPU if you have multiple pricing tiers — divide total MRR by total customers.
Net New MRR
Net New MRR = (New Customers × ARPU + Expansion) − (Churn% × MRR)
The true growth signal. A positive Net New MRR means you are growing; negative means churn is outpacing acquisition.
Revenue Ceiling (Max MRR)
Max MRR = New MRR ÷ Monthly Churn Rate
Growth stops when churned MRR equals new MRR. This formula reveals that ceiling. Halving churn doubles it; doubling new customers also doubles it — pick whichever is cheaper.
ARR
ARR = MRR × 12
Annual Recurring Revenue normalises your monthly figure to a yearly view — used for board reporting, valuations, and annual planning.
Frequently Asked Questions
Now you know the number
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