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Free tool

CPA Calculator

Work out what each acquisition actually costs you in advertising, so you can judge whether the channel is worth scaling.

Your numbers Any period
Total media spend for the period.
The conversions you are paying for — purchases, sign-ups or bookings.

Method: CPA = Advertising spend ÷ Acquisitions

Result

Enter your numbers to see the result and what it means.

How this calculator works

Enter your advertising spend for a period and the number of acquisitions it produced. The calculator divides one by the other to give your cost per acquisition.

The formula

CPA = Advertising spend ÷ Acquisitions. Both must cover the same period, and an acquisition should mean the same thing in both your ad platform and your reporting.

Questions

No. CPA usually counts media spend only. CAC is the fully loaded cost including fees, tools and sales effort, which is why CAC is almost always higher.

Whatever is below the gross profit a customer generates. There is no universal figure — a $300 CPA is excellent for a $5,000 sale and ruinous for a $50 one.

Proof this works

400+ sales-qualified leads via calls and forms, tracked end to end.

If you would rather we handled it

We manage Google Ads accounts where the goal is qualified enquiries, not clicks.

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