LTV to CAC Ratio Calculator

What is the ltv to cac ratio calculator?

The LTV:CAC ratio is the single clearest signal of whether growth is sustainable. Below 1:1 you lose money on every customer; around 3:1 is generally considered healthy; far above 5:1 usually means you are underinvesting in acquisition. This tool also returns payback period in months, which is what actually constrains cash flow.

How to use it

1. 1Enter your lifetime value and customer acquisition cost.
2. 2Adjust gross profit per customer per month if they apply — leave them as they are if not.
3. 3Press Calculate. Results update instantly, so you can change a number and compare.
4. 4Read the ltv : cac and payback (months) first — those are the numbers that decide the call.
5. 5Save the result to your account if you want to come back to it later.

Frequently asked questions

Is the LTV to CAC Ratio Calculator free to use?

Yes. The LTV to CAC Ratio Calculator is free, unlimited and does not require an account. Creating a free account only adds favourites, saved results and history.

Is my data sent anywhere?

No. Everything runs in your browser — your figures never leave the device unless you choose to save a result to your account.