Free tools

Calculators that give you an honest number in under a minute. No signup, no gate on the maths, nothing to install.

Customer Lifetime Value Calculator
What a customer is worth over their whole relationship with you, for repeat purchase or subscription businesses, plus what happens when retention improves.
Open the calculator

In the works

The first of a growing set. These are being built next.

Discount Break-Even Calculator. How many extra sales a discount needs just to break even on profit. Usually more than the discount actually drives.
Churn Rate Calculator. Your monthly churn rate, the customer lifespan it implies, and what the trend is telling you.
Retention Compounding Model. Twelve months of compounding at your churn rate, next to the same year one point better.

Know when the next one lands

I build one of these at a time. Sign up and I will tell you when the next calculator goes live, along with the thinking behind it.