MRR Growth Rate Calculator

About this calculator

This calculator computes MRR growth rate = (this month's MRR − last month's MRR) ÷ last month's MRR × 100 alongside net new MRR (the dollar difference), the core metric SaaS companies use to track how fast recurring revenue is compounding month over month, separate from one-time or usage-based revenue.

Founders and finance teams watch this number to catch a slowdown early — a healthy early-stage SaaS company is often benchmarked against a 10-20% MoM growth target — and investors use it during fundraising to judge momentum, since a steady growth rate compounded over a year tells a very different story than the same total revenue reached in one lumpy quarter.