Revenue Churn Calculator

The calculation itself

Revenue churn is MRR lost divided by MRR at the start of the period: lost MRR ÷ starting MRR × 100. It counts money rather than customers.

Gross revenue churn excludes expansion; net revenue churn subtracts it, and net can be negative when expansion exceeds losses.

It differs from customer churn whenever departing subscribers are worth more or less than average, which is nearly always.

Putting numbers to it

$58,000 of starting MRR losing $1,740 from 80 departures is 3% revenue churn against 4% customer churn.

The gap means departing subscribers were on cheaper plans than average, losing 4% of customers cost only 3% of revenue.

The reverse pattern is more concerning: 4% customer churn producing 6% revenue churn means the business is losing its larger accounts, which is a much worse situation with the same headline customer figure.

Net revenue churn including $2,200 of expansion would be −$460, or −0.8%, the base growing without any new customers.

Where the figure deceives

Customer churn and revenue churn moving in opposite directions is the informative case, and reporting only one hides it. A business can look stable on customers while its revenue base concentrates or erodes.

Expansion revenue can also mask genuine attrition for a long time, which is why the gross figure matters alongside the net one.

Acting on it

Report customer churn and revenue churn together, and investigate whenever they diverge. The direction of the gap tells you whether you are losing small accounts or large ones.

Then segment by plan and by tenure, since the cause is usually concentrated rather than spread evenly across the base.

Negative net revenue churn and what it takes

A business where expansion exceeds churn grows from its existing base alone, which compounds without any acquisition. It is the property that makes subscription businesses valuable and it is rare.

It requires either a pricing model that scales with the customer's usage or success, or a genuine upgrade path that a meaningful share of customers take.

Most consumer subscriptions cannot achieve it, since a single flat plan offers nowhere to expand into. That is not a failure. It means growth has to come from acquisition and retention rather than from expansion, and the business should be planned accordingly rather than chasing a metric its model does not support.

Cohort revenue retention is the more informative version for a business with expansion, since it follows a defined group rather than blending cohorts at different maturities.

It answers whether customers acquired a year ago are worth more or less now, which the aggregate figure cannot show.

Segmenting by plan usually shows that churn concentrates in the cheapest tier, which is normal and worth knowing before designing a retention programme aimed at the whole base.

The revenue at stake in the top tier is frequently larger despite far fewer departures.

Tracking the average value of churned accounts against the base average is a quick diagnostic, since a rising ratio means the business is losing its more valuable customers first.

Watching the ratio of revenue churn to customer churn over time is a compact early warning, since a rising ratio means the departures are getting more valuable.