MRR / ARR Growth Calculator
Enter current MRR, target MRR, and a monthly growth rate. Get months to target, a 12-month trajectory, and a T2D3 comparison for context.
| Month | MRR | ARR |
|---|---|---|
| 1 | $11,000 | $132,000 |
| 2 | $12,100 | $145,200 |
| 3 | $13,310 | $159,720 |
| 4 | $14,641 | $175,692 |
| 5 | $16,105 | $193,261 |
| 6 | $17,716 | $212,587 |
| 7 | $19,487 | $233,846 |
| 8 | $21,436 | $257,231 |
| 9 | $23,579 | $282,954 |
| 10 | $25,937 | $311,249 |
| 11 | $28,531 | $342,374 |
| 12 | $31,384 | $376,611 |
The formula
Months equals natural log of (target / current) divided by natural log of (1 + monthly growth rate).
FAQ
What is T2D3?+
A benchmark growth trajectory from Neeraj Agrawal: after $1M ARR, triple (Y1), triple (Y2), double (Y3), double (Y4), double (Y5) to reach $100M.
Is compound monthly growth realistic?+
For short horizons at seed scale, yes. Compounding at 15% MoM for 24 months is not, because sales cycles lengthen with ACV.
How do I convert annual to monthly growth?+
Monthly growth equals (1 + annual)^(1/12) minus 1. 100% annual is roughly 5.9% monthly.
Should I use gross or net MRR?+
Net (new + expansion − churn − contraction) is what runway consumers see. Gross overstates.
Why is my target month "Never"?+
Because growth is zero or negative and your target is above current MRR. Increase the growth rate.