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SaaS MRR & ARR Predictor Calculator

Calculate the compounded recurring pipeline generated when balancing fresh monthly subscriptions against active user churn.

Calculator Parameters
Subscription Mathematics
$
ARPU - Monthly tier cost
Total paying base right now
Fresh users acquired monthly
%
Users who cancel each month
Mo
Calculate future MRR at this timescale
Summary
Target Monthly Recurring Revenue (MRR)
$50,000.00
$29,000.00
Current Live MRR
$600,000.00
Projected ARR (Yearly)
Allocation Split
Growth & Churn Limits

By Month 12, your SaaS will stabilize near 2,200 active users.

The Asymptote Death: At 5% churn with 150 new adds/mo, your SaaS mathematically physically cannot grow past exactly 3,000 users. At that specific threshold, the 150 people churning out exactly matches the new signups. Growth flatlines instantly.
Education

The Mechanics of MRR Asymptotes

Why 90% of SaaS founders eventually hit a horrific 'revenue ceiling' they cannot break through.

The Compound Churn Wall

If you add 100 users a month, and have a 10% Churn rate, your business feels amazing in Month 1. You lose 10 users, you net +90.

However, Churn is a percentage of your Total Active Base, not your new adds. When your total base reaches 1,000 users, 10% Churn means you are now violently bleeding 100 users a month. If you are still only adding 100 fresh users a month through marketing, your SaaS has hit the Death Wall. You will never, ever grow past 1,000 users. Your MRR is permanently frozen.

The Fix

To break an MRR Asymptote, a founder must logically only do one of two things:

  • Fix the Leaky Bucket: Spend 6 months entirely freezing new features, and drop the churn rate from 10% to ideally 3% by fixing bugs and actively talking to angry customers.
  • Increase Top-Of-Funnel: Double the marketing budget to acquire 250 new adds a month instead of 100, outrunning the 100 customer blood-loss. (This is generally mathematically vastly more expensive).