Revenue Churn Rate (Gross MRR Churn) Calculator

What is Gross Revenue Churn Rate (MRR)? Gross Revenue Churn Rate (MRR) (a.k.a. Gross MRR Churn Rate) measures the percentage of your starting MRR from existing customers that yo...

Revenue Churn Rate Calculator

Measure gross revenue churn from contraction and churned MRR as a percentage of starting MRR. Clean, focused UX with clear tooltips, scenarios, and a concise What It Means panel.

$

Recurring revenue from existing customers at the beginning of the period (month or quarter). Excludes new business won during the period.

$

Revenue lost from downgrades and seat or usage reductions by existing customers during the period (entered as a positive amount).

$

Recurring revenue lost from full cancellations in the period (entered as a positive amount).

Scenarios
Load common SaaS profiles to see how contraction and churn translate into revenue churn for existing customers.
PLG SaaS – very low churnSteady B2B bookEnterprise – mixed outcomesTurnaround – high churn signal

Results

  • Revenue churn rate— %
  • Lost MRR (contraction + churn)$
  • Ending MRR from existing customers$
  • Starting MRR$
  • Churn profile—

Enter your inputs above to calculate the results.

What is Gross Revenue Churn Rate (MRR)?

Gross Revenue Churn Rate (MRR) (a.k.a. Gross MRR Churn Rate) measures the percentage of your starting MRR from existing customers that you lose during a period due to cancellations (Churned MRR) and downgrades (Contraction MRR). It intentionally ignores upgrades/upsells (Expansion MRR) so you can see your pure revenue leakage from the installed base.

This matters because it directly hits revenue durability and makes growth more expensive: the higher your gross churn, the more New MRR you need just to “stand still,” and the harder it is to improve Net Revenue Retention (NRR), Gross Revenue Retention (GRR), and Net MRR Churn Rate. It also ripples into unit economics—shrinking LTV, worsening LTV:CAC (via CAC), and often signaling a pricing/packaging or customer-success issue you’ll also see in Customer Churn Rate and declining ARPA.

Formula

Gross Revenue Churn Rate = (Churned MRR + Contraction MRR) / Starting MRR (existing customers) × 100%

Example

Starting MRR (existing customers): $120,000

Contraction MRR: $4,000

Churned MRR: $6,000

Lost MRR (contraction + churn) = $4,000 + $6,000 = $10,000
Gross Revenue Churn Rate = ($10,000 ÷ $120,000) × 100% = 8.33%
Ending MRR from existing customers = $120,000 − $10,000 = $110,000

How to Use the Revenue Churn Rate (Gross MRR Churn) Calculator

Frequently Asked Questions

Should expansion MRR be included in Gross Revenue Churn (MRR)?

No. Gross revenue churn counts only revenue lost from downgrades (contraction) and cancellations (churn). If you subtract expansion, you’re calculating net revenue churn instead.

What exactly counts as Contraction MRR vs. Churned MRR?

Contraction MRR is MRR lost from existing customers who downgrade (fewer seats, lower plan, reduced usage). Churned MRR is MRR lost from customers who cancel or don’t renew.

Why is my revenue churn rate different from my customer churn rate?

Revenue churn is $-weighted. Losing one large account can spike revenue churn even if customer churn is low (and vice versa).

How do I translate Gross Revenue Churn into Gross Revenue Retention (GRR)?

For the same period, GRR% = 100% − Gross Revenue Churn%.

Sources & Methodology