Set the opening cohort
Use customers and MRR active at the start of the month as the denominators.
MONTHLY SUBSCRIPTION CHURN
Monthly Churn Calculator
Calculate logo churn and gross revenue churn for one month, then keep expansion separate so losses are not hidden.
- Uses your inputs in a transparent calculation
- Instant result with practical next steps
- No signup required
Planning guidance only. Validate important decisions with customer evidence and your delivery team.
YOUR INPUTS
Build your result
Complete every field. The result updates only when you choose Calculate.
How it works
Calculate gross losses
Customer churn divides lost customers by starting customers; gross MRR churn includes cancellation and downgrade revenue.
Keep expansion visible
Net MRR churn subtracts expansion, while gross churn remains visible so gains do not hide losses.
Continue learning: SaaS unit economics founders should measure · Early SaaS metrics mistakes
Frequently asked questions
Should new customers be included in the churn denominator?
No. For a monthly cohort calculation, use customers active at the start of the period.
What is the difference between logo churn and revenue churn?
Logo churn counts customers lost. Revenue churn measures recurring revenue lost, so losing a larger customer has more impact.
Can net MRR churn be negative?
Yes. Expansion can exceed cancellation and downgrade MRR. Still review gross churn separately.
Does this calculate voluntary and involuntary churn separately?
No. Segment cancellation and failed-payment losses in your source data if that distinction matters.
How We Compare
| Feature | MVPHub | Stripe Billing | ChartMogul |
|---|---|---|---|
| Customer churn calculation | Included | Included | Included |
| Gross and net MRR churn shown separately | Included | Included | Included |
| Manual what-if inputs | Included | Limited | Limited |
| No billing-data connection required | Included | Not included | Not included |
Stripe Billing exposes subscription and revenue metrics from its billing system. ChartMogul unifies connected subscription data for MRR and churn analysis. MVPHub is a manual single-period calculator and does not replace cohort reporting.
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