Churn cost calculator for SaaS
"Reduce churn" is easy to say and hard to make feel urgent to a prospect who hasn't done the maths. A churn cost calculator does the maths for them: they type in their MRR and monthly churn rate, and see the euro figure they're losing every month before you say a word about your product.
1. Ask for the two numbers that make churn concrete
Most SaaS founders know their MRR and roughly what percentage of customers cancel each month, but have never multiplied the two together. That's the whole calculator: MRR and monthly churn rate in, lost revenue per month and per year out.
2. Compare "do nothing" to your plan
The cost savings calculator template already compares two numbers and shows the gap. Set "current cost" to what churn costs them today (MRR x churn rate) and "our price" to what churn would cost at the lower rate your retention, onboarding or customer-success service gets them to — the saving is the case for your service, in their own currency.
3. Show the annual number, not just the monthly one
A monthly loss of a few hundred euros sounds survivable; the same number times twelve usually isn't. Add a line under the result that multiplies the monthly saving by twelve, so the number that sticks is the one that justifies a new line item in their budget.
4. The lead is a free churn audit, not a demo request
Once a prospect has seen their own number, ask for a name, email and company with: "Want a free 15-minute churn audit based on this?" That's a far warmer ask than "book a demo", because they've already seen the problem is real and sized in euros before you spoke to them.
5. Start from the template
Open the cost savings calculator template, relabel the fields to "monthly recurring revenue" and "monthly churn rate" (or pre-multiply them into "current monthly churn cost" and "churn cost at our target rate" if you'd rather keep the formula simple), publish, and paste the one-line embed snippet into your site.