CPA Calculator

CPA stands for cost per acquisition. It measures how much you spend to generate one acquisition from your marketing or advertising campaigns.

An acquisition can be a customer, purchase, lead, signup, or another conversion depending on the goal you are measuring.

The standard cost per acquisition formula is:

For example, if you spend $2,500 on advertising and acquire 100 customers, your CPA is $25.

To calculate CPA, add up your total advertising spend for the campaign or period you want to measure. Then divide that amount by the number of acquisitions generated from the same spend.

This means the campaign cost an average of $25 for each acquisition.

Enter your total advertising spend and the number of acquisitions generated. The calculator will automatically calculate your cost per acquisition.

You can use customers, purchases, leads, signups, or other conversions as acquisitions as long as the same definition is used consistently.

A good CPA is one that allows your business to acquire customers while remaining profitable. There is no single CPA target that works for every business.

Your ideal CPA depends on average order value, gross margin, customer lifetime value, operating costs, and your desired profit margin.

Use the Profit Margin Calculator to understand how much margin you have available before setting your acquisition target.

Maximum CPA estimates the highest amount you can spend to acquire one customer while still keeping your desired profit per order.

CPA usually measures the cost of generating a specific conversion from advertising, such as a sale or lead. CAC, or customer acquisition cost, often includes broader sales and marketing expenses used to acquire a new customer.

CPA measures how much it costs to acquire one customer or conversion. ROAS measures how much revenue advertising generates for every dollar spent.

Use the ROAS Calculator when you want to measure advertising revenue efficiency instead of acquisition cost.

CPA should always be considered alongside your margins. If your acquisition cost becomes too high relative to gross profit, your advertising may become unprofitable even if it continues to generate customers.

Use the Break-Even ROAS Calculator to understand the advertising efficiency required to avoid losing money.