PaidMathAd metric calculators

Free ad metric calculators

Work out CPM, CPC, ROAS, CTR and CPA in seconds. Every calculator updates as you type and shows the formula, a worked example and typical benchmarks.

Which calculator do you need?

What does reach cost? Use CPM.
The CPM calculator prices 1,000 impressions, so you can compare platforms.
What does a visit cost? Use CPC.
The CPC calculator gives the price per click and the most you can pay and still hit your CPA.
Is the ad copy working? Use CTR.
The CTR calculator shows the share of impressions that become clicks, and tests two ads against each other.
What does a customer or lead cost? Use CPA.
The CPA calculator divides spend by conversions.
Is the campaign profitable? Use ROAS and break-even ROAS.
The ROAS calculator shows revenue per ad dollar, and the break-even ROAS calculator shows the minimum you need to avoid losing money.