Cost Per Acquisition Calculator

Calculate cost per acquisition, ad spend, acquisitions, conversions, revenue, profit, ROAS, ROI, and target CPA. Use this CPA calculator to measure how much it costs to gain a customer, lead, signup, sale, or other conversion.

Calculate Cost Per Acquisition

Cost Per Acquisition = Ad Spend ÷ Acquisitions.
Your result will appear here.

How the CPA calculator works

Cost per acquisition:
Enter ad spend and acquisitions to calculate CPA.

Ad spend from CPA:
Enter known CPA and acquisitions to estimate total ad spend.

Acquisitions from budget:
Enter budget and known CPA to estimate how many acquisitions the budget may generate.

Target CPA:
Enter revenue, costs, and target profit to estimate the maximum CPA you can afford.

Why use a cost per acquisition calculator?

A cost per acquisition calculator helps review paid ads, lead generation, sales campaigns, ecommerce acquisition, and customer acquisition cost.

It can help compare campaigns, set budgets, estimate acquisition volume, and check whether marketing spend is profitable.

What your result means

Your result shows cost per acquisition, ad spend, acquisitions, cost per lead, lead-to-acquisition rate, click-to-acquisition rate, revenue per acquisition, campaign profit, ROAS, ROI, and target CPA. A lower CPA can improve profitability when acquisition quality and revenue stay strong.

Cost per acquisition calculator formulas

Frequently asked questions

What is cost per acquisition?

Cost per acquisition, or CPA, is the average marketing cost needed to get one acquisition, such as a customer, lead, sale, signup, or booked appointment.

How do you calculate CPA?

Divide total ad spend or campaign cost by the number of acquisitions.

Is CPA the same as CAC?

They are related. CPA can measure the cost of any acquisition action, while CAC usually measures the cost to acquire a paying customer.

What is a good CPA?

A good CPA depends on how much revenue and profit each acquisition creates. CPA should usually be lower than the value or profit generated by the acquisition.