Save rate calculator: what are cancellations costing you?
Last updated 27 October 2026
Enter three numbers from your billing dashboard. The calculator shows what leaves each month, then what you would keep at three save rates, from cautious to optimistic, with the working shown underneath. Nothing you type leaves your browser.
Active subscriptions today.
A typical month, or the last one.
US dollars a month per subscriber.
Example values. Change them to yours.
Revenue leaving each month
$980
Monthly churn
5%
5% save rateCautious
$49kept a month
- Customers kept a month
- 1
- Over 12 months
- $588
A floor to plan with.
10% save rateMiddle
$98kept a month
- Customers kept a month
- 2
- Over 12 months
- $1,176
Halfway between the cautious and optimistic cases.
20% save rateOptimistic
$196kept a month
- Customers kept a month
- 4
- Over 12 months
- $2,352
Around the top of what vendors in this category advertise. Treat it as someone else’s upper bound, not a promise.
How the numbers are worked out
- Revenue leaving each month = cancellations × average subscription value.
- Kept each month = cancellations × save rate × average subscription value.
- Each saved customer is counted for one month only, the month they would have left, at full price. Most saved customers stay longer, so the real figure can be higher. A discount or a free cycle makes that first month lower, so treat the result as a range, not a forecast.
- Over 12 months = a year of months like this one. It doesn’t add the later payments from customers saved earlier in the year.
Why three save rates, not one
A single save rate hides how uncertain it is. These three span the range worth planning with:
- 5%, cautious. A floor to plan with.
- 10%, middle. Halfway between the cautious and optimistic cases.
- 20%, optimistic. Around the top of what vendors in this category advertise. Treat it as someone else’s upper bound, not a promise.
What counts as a save matters as much as the percentage. Reoffer counts a customer as saved only once Stripe confirms their subscription was changed. How to measure a save rate you can defend sets out the full method.
Questions
What is a save rate?
The share of customers who were shown an offer while cancelling and stayed because of it. A defensible save rate counts only customers whose subscription was actually changed, a discount, a free cycle or a pause, not everyone who clicked “accept”.
What is a good save rate?
Published figures range widely and rarely say what they count, so they are hard to compare. That is why this calculator shows a range from 5% to 20% instead of one number. Your own rate depends on your product, your price and the offers you make; measure it with a definition you can check against your billing system.
How much is churn costing me?
At least your cancellations each month multiplied by your average subscription value, and more over time, because each cancelled customer would have paid again next month. The calculator shows the monthly figure and a year of months like it.
Why does the calculator count only one month per saved customer?
It is the part that can be stated without guessing how long a saved customer stays. A longer horizon makes the number bigger and less certain. If you know your average customer lifetime, multiply by it yourself.
Is what I type stored or sent anywhere?
No. The sums run in your browser. Nothing is saved, and no email address is asked for.
Start with why they leave
A number you can’t check yet is a guess. The Free plan puts a short question in front of your cancel button and records why customers leave: no card, one product, feedback only.