CAC Calculator

What is the cac calculator?

Customer acquisition cost is total sales and marketing spend divided by new customers won. This calculator reports the blended figure (all spend, all new customers) alongside the paid-only figure, and shows CAC as a share of average order value — the ratio that determines whether you need repeat purchases to survive.

How to use it

1. 1Enter your marketing spend and new customers.
2. 2Adjust sales / agency costs and average order value 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 customer acquisition cost and cac as % of aov 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 CAC Calculator free to use?

Yes. The CAC 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.