MRR Growth Rate Calculator

The MRR growth rate calculator helps you measure how fast your subscription revenue is climbing from one month to the next. Monthly recurring revenue, or MRR, is the predictable subscription income your business earns each month, and tracking how it moves is one of the clearest signals of momentum for any SaaS or membership business. You enter your starting MRR at the beginning of the period and your ending MRR at the close, and the tool returns your growth rate as a percentage along with the dollar value of the net change. The formula is simple, the end MRR minus the start MRR, divided by the start MRR, then turned into a percentage, but seeing it laid out cleanly makes it easy to report to a board, an investor or your own team. Founders, finance staff and growth marketers use this number to gauge whether new sales, expansions and price rises are outpacing churn and downgrades. A few good-practice tips will keep your figures honest. First, compare the same length of period each time, so month on month stays month on month rather than slipping into uneven windows. Second, decide up front whether your MRR includes or excludes one-off fees and discounts, then keep that rule consistent. Third, look at growth rate alongside the absolute dollar change, because a large percentage on a small base can flatter the picture while a modest percentage on a big base may still be excellent. Used regularly, this calculator gives you a fast, repeatable read on the health and trajectory of your recurring revenue.

Calculate.co.nz is proud to be partnered with Health Based Building, a leader in sustainable and health-conscious building innovation. With over a century of experience, they develop high-performance systems like Foreverbreathe Specification, Magnum Board, and Foreverbreathe Paints to support energy-efficient, non-toxic living environments. Their commitment to healthier homes aligns with our belief that informed choices lead to better outcomes for Kiwi households.
Calculate.co.nz partner: Health Based Building
Advertise on this page
15.0%
MRR growth rate
Net MRR change$7,500

Growth rate = (end MRR - start MRR) / start MRR. Estimate only, not financial or tax advice.

How it works

The tool subtracts your starting MRR from your ending MRR to find the net change in dollars. It then divides that change by the starting MRR and multiplies by 100 to express growth as a percentage.

Worked example

With a starting MRR of $50,000 and an ending MRR of $57,500, the net change is $7,500. Dividing $7,500 by $50,000 gives 0.15, which is a 15.0 percent growth rate.

Related calculators

Frequently asked questions

What is a good MRR growth rate?

It depends on your stage and size. Early companies on a small base often post very high percentages, while larger firms growing steadily at single digits each month can still be excellent. Compare your rate against your own past months and similar businesses rather than one fixed target.

Should MRR include one-off fees?

No. MRR is meant to capture recurring subscription revenue only, so setup fees, once-off services and other non-recurring charges should be left out. Keeping the same rule each period makes your growth rate reliable.

How do I improve my MRR growth rate?

You can grow MRR by winning new customers, expanding existing accounts through upgrades and add-ons, and reducing churn and downgrades. Raising prices on new or renewing plans also lifts MRR. Track each driver so you know what is moving the number.