Subscription Revenue Calculator
Project how a subscription business grows. Enter today’s subscribers, the monthly price, new subscribers per month, monthly churn and the number of months to project, plus an optional yearly price increase. Each month the calculator removes churned subscribers, adds new ones and multiplies by the price, showing subscribers and MRR at key months, total revenue over the period and the ceiling where new sign-ups only replace churn.
- Runs in your browser
- No sign-up
- Free to use
How to use Subscription Revenue Calculator
- Enter subscribers, price and new sign-ups.
- Enter monthly churn.
- Choose how many months to project.
- Read MRR, revenue and the ceiling.
Subscription Revenue Calculator features
Month-by-month model
Churn then new sign-ups.
Price increases
Applied yearly.
Subscriber ceiling
New ÷ churn.
Total revenue
Over the period.
Formula shown
Every result explains how it was calculated.
Any currency
Choose from 30+ currencies; amounts are formatted for it.
When to use Subscription Revenue Calculator
- SaaS and membership planning.
- Newsletter and community subscriptions.
- Investor forecasts.
- Testing churn-reduction scenarios.
Subscription Revenue Calculator FAQ
What is the subscriber ceiling?
With constant sign-ups and churn, subscribers level off where monthly losses equal monthly gains: new sign-ups ÷ churn rate.
Why does growth slow down?
Churn grows with the subscriber base while new sign-ups stay constant.
How can I raise the ceiling?
Lower churn or win more subscribers each month.
Is this an accounting forecast?
It is a simple model with constant inputs, useful for scenarios.
What is a good monthly churn rate?
It depends on the market. Consumer subscriptions often see higher churn than business software; compare yourself with your own past months first.
Growth and churn together
Subscription revenue grows only as long as new customers outnumber churned ones. The ceiling shows where the business will settle if nothing changes, which often makes the value of reducing churn very clear.
Try a version with 1% lower churn: the difference after a year usually surprises.
A useful rule: with constant new subscribers and churn, the subscriber base levels off where new subscribers equal those lost. Example: 100 new subscribers a month and 5% monthly churn level off at about 2,000 subscribers (100 ÷ 0.05), however long you wait.
That is why reducing churn raises the ceiling of a subscription business, while more new subscribers mostly speed up the climb. The projection uses your assumptions; real growth varies month to month.