Free month-on-month growth calculator
Get your compound monthly growth rate, yearly growth, doubling time and when you'll hit a target. Free, no email.
1Your numbers
Example numbers: replace with yours2Your growth
Your result will appear here
Fill in the form and press Calculate my growth. You'll get:
Compound monthly growth
—
Growth over a year
—
Doubling time
—
Months to your target
—
Plus the next 12 months at the same rate.
How the Month-on-Month Growth Calculator works
- 01
Add where you started
The starting value of whatever you track: revenue, monthly recurring revenue (MRR), customers or users.
- 02
Add where you are now
Today's value and the number of months between the two.
- 03
Add a target (optional)
A value you want to reach, to see how many months it takes at today's rate.
- 04
Read your growth
Your compound monthly growth rate (CMGR), growth over a year and doubling time.
- 05
See the next 12 months
Where the same rate takes you month by month.
Questions about the Month-on-Month Growth Calculator
What it does, what it costs, and how far to trust the result.
01How do I calculate month-on-month growth?
For one month: (this month − last month) ÷ last month. Over several months, use the compound monthly growth rate: (value now ÷ starting value) to the power of 1 ÷ months, minus 1. Going from 20,000 to 35,000 in 6 months is 9.8% a month.
02Why not just average the monthly growth?
Because each month grows on the one before. 75% growth over 6 months averages 12.5% a month, but 12.5% compounded for 6 months gives 103%, not 75%. The compound rate, 9.8%, is the one that actually gets you from start to finish.
03How do I turn monthly growth into yearly growth?
Yearly growth = (1 + monthly rate) to the power of 12, minus 1. 9.8% a month is about 206% a year, roughly tripling.
04What is a good month-on-month growth rate?
It depends on stage and size. For very early startups, Paul Graham's essay Startup = Growth suggests 5–7% a week during Y Combinator is good. Rates usually fall as the business grows, so compare yourself with your own past months as well.
05How long will it take to double?
Doubling time = ln 2 ÷ ln(1 + monthly rate). At 9.8% a month that's about 7.4 months. At 5% a month it's about 14 months.
06Is the month-on-month growth calculator free?
Yes, completely free, with no sign-up and no email. It runs in your browser and nothing you enter is sent anywhere.
Try another tool
Revenue Leakage Calculator
Free revenue leakage calculator. See how much revenue you earn but never collect: discounts, failed payments, unbilled work, old prices and unpaid invoices, ranked with a fix for each.
- About 3 minutes
- Runs in your browser
- 100% free · no email needed
Sales Pipeline Calculator
Free sales pipeline calculator. Work back from your revenue target to the deals, pipeline coverage and leads you need, when they must exist, and which lever cuts the number most.
- About 2 minutes
- Runs in your browser
- 100% free · no email needed
LTV:CAC & CAC Payback Calculator
Free customer lifetime value to acquisition cost (LTV:CAC) and payback calculator for subscription (SaaS) and repeat-purchase businesses. See how long a customer takes to pay back, their lifetime value in gross profit, and the most you can afford to spend to win one.
- About 2 minutes
- Runs in your browser
- 100% free · no email needed