Free CPA tool

Free CPA Calculator

See exactly what it costs to win a customer, and whether they're worth more than you paid.

Fill in the fields to see your result.
Track real cost-per-customer per channel

Neuron360 pulls your live numbers and shows which channels win customers cheapest.

Open Monitor

The number that decides if ads work

CPA is the honest test. If it costs £50 to win a customer who spends £40, you're paying to lose money, and no amount of scaling fixes that, it just loses faster.

Compare your CPA to what a customer is actually worth, and watch it per channel, some quietly cost double the rest. Neuron Monitor tracks it live.

Good to know.

What is CPA?

Cost Per Acquisition: total spend divided by customers won. Spend £2,000 to get 40 customers and your CPA is £50.

Is my CPA too high?

It's too high the moment it's more than a customer is worth to you. Add your average order value above and we'll show your margin per customer.

CPA vs CAC?

People use them loosely. CPA usually means cost per conversion from a channel; CAC often includes all sales and marketing costs. This tool does the per-channel version.

Is it free?

Yes, no login. Neuron Monitor tracks real CPA per channel automatically.

Track cost-per-customer automatically

Neuron360 shows real CPA per channel, so you double down on the cheap ones and cut the rest.