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MRR calculator. Growth and churn in one go.

Enter a month's movements: where MRR started, what was added and what was lost. Read ending MRR, net new MRR, ARR, growth and both churn rates, each with the sum behind it.

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New MRR comes from new customers, expansion from upgrades and added seats, contraction from downgrades, churned MRR from cancellations. Whole dollars.

Ending MRR
$22,400
ARR
$268,800
Ending MRR
$20,000 starting + $2,500 new + $1,200 expansion minus $400 contraction minus $900 churned = $22,400
$22,400
Net new MRR
$2,500 new + $1,200 expansion minus $400 contraction minus $900 churned = $2,400
$2,400
ARR
$22,400 ending MRR × 12 = $268,800
$268,800
MRR growth rate
$2,400 ÷ $20,000 = 12.0%
12.0%
Customer churn rate
6 ÷ 200 = 3.0%
3.0%
Revenue churn rate
($400 + $900) ÷ $20,000 = 6.5%
6.5%
The formulas

What each number means

Net new MRR
New MRR plus expansion, minus contraction and churned MRR. What the month added or took away.
Ending MRR
Starting MRR plus net new MRR. Where the next month starts.
ARR
Ending MRR times twelve: the same recurring revenue seen over a year.
MRR growth rate
Net new MRR divided by starting MRR.
Customer churn rate
Customers lost in the month divided by customers at the start of it.
Revenue churn rate
Contraction plus churned MRR, divided by starting MRR. Upgrades are not counted back in here; take expansion off the top for net revenue churn.

MRR in the glossary → ARR → Churn rate →

yRecurring keeps MRR, ARR and growth up to date for you.

The dashboard tracks MRR, ARR, ARPU, net new MRR and MRR growth from daily snapshots of your subscriptions, and never adds different currencies together. Churn rates are not on it yet; this calculator does those.

Questions about MRR

What counts toward MRR?

The recurring part of what your active subscriptions bill, expressed per month. A yearly plan counts as one twelfth of its price each month. One-off charges, setup fees and refunds are usually left out, because they do not repeat.

What is the difference between customer churn and revenue churn?

Customer churn counts people: how many of the customers you started the month with left. Revenue churn counts money: how much of the MRR you started with was lost to cancellations and downgrades. Losing one large customer can barely move the first and badly move the second.

What is net revenue churn?

Revenue churn after the upgrades are counted back in: contraction plus churned MRR, minus expansion, divided by the MRR you started with. When upgrades from existing customers outweigh what you lost, it goes below zero, and the business grows even with no new customers.

Why is ARR just MRR times twelve?

ARR is the same recurring revenue seen over a year: what the current subscriptions would bill over twelve months if nothing changed. It is a run rate, not a forecast and not the revenue you booked last year.

Does yRecurring work these out for me?

MRR, ARR, ARPU, net new MRR and MRR growth are on the yRecurring dashboard, built from daily snapshots of your subscriptions, and never add different currencies together. Churn rates are not on the dashboard yet; for now this calculator does them.

Know your MRR without a spreadsheet.