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MRR Calculator

Calculate your Monthly Recurring Revenue, forecast next month's growth, and uncover the revenue ceiling your current churn is imposing.

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Created by
Anshu PatelAnshu Patel

Your Subscription Metrics

Currently paying subscribers (exclude free trials)

$

Monthly price per customer — use a blended average if multi-plan

10
0200

Average new paying customers added per month

3%

% of subscribers who cancel each month. Industry benchmark: <2% is excellent, 5%+ is risky.

(Optional)

Add upgrade / upsell revenue to see its impact on your growth trajectory.

Current MRR

$9,900

ARR: $118,800

Healthy Growth

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

New MRR
+$990
Churned MRR(3%)
$297
Net New MRR
+$693

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

World-class
< 1%
Excellent
1–2%
Average
2–5%
Risky
5–8%
Critical
> 8%

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.

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How This Calculator Works

1

Enter subscription metrics

Active customers, monthly price (ARPU), new customers per month, and your monthly churn rate.

2

See MRR & movement

Instantly see current MRR, ARR, New MRR, Churned MRR, and Net New MRR — all in one view.

3

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

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