MRR Growth Calculator

Only recurring, contracted revenue at its monthly value: normalize annual plans by dividing by twelve. Exclude one-time setup fees, usage overages that do not repeat, and refunds. Being strict matters because MRR feeds valuation and forecasting: inflating it with one-time revenue produces a growth rate that quietly falls apart later.

It depends heavily on scale. Early subscription businesses under $50,000 MRR often target 10–15% monthly; past $1M ARR, 5–7% monthly is strong; mature businesses celebrate 2–3%. The same $3,000 of added MRR represents each of those depending on the base, which is exactly why the rate matters more than the dollars.

Yes, implicitly: ending MRR is what is left after new business, expansion, contraction, and churn all land. That makes it a net growth rate. For diagnosis, break it apart: strong new MRR masked by heavy churn and healthy retention with weak acquisition produce the same net number but need opposite fixes.

Compound it, never multiply by twelve: annual growth = (1 + monthly rate)^12 − 1. A 15% monthly rate is (1.15)^12 = 5.35× over a year, 435% growth, not 180%. The reverse works for planning: to end the year at 3× current MRR, you need (3)^(1/12) − 1 ≈ 9.6% each month.