What is CPA?
CPA tells you what each sale, sign-up or lead costs in ad spend. Compare it with what a customer is worth to judge a campaign.
How to use the cpa calculator
Type your numbers into the fields above and the result updates as you go. Copy it into a report, or share a link that opens the calculator with your numbers already filled in.
Related calculators
You may also want the ctr calculator, cpm calculator, cpc calculator. Browse everything in ad cost metrics calculators.
Frequently asked questions
What is a good CPA?
A good CPA is lower than the profit a customer brings you. Work out your profit per sale first, then use it as your ceiling.
Is CPA the same as CAC?
Not quite. CPA usually counts ad spend only, while customer acquisition cost often includes other sales and marketing costs.
Results are estimates based on the numbers you enter and are not financial advice.