Free calculators for advertisers, marketers and online sellers. Every tool shows its formula, worked examples and what the result means, so you can check the math instead of just trusting a number.
CPM CalculatorROAS CalculatorCPM Calculator
Find your cost per 1,000 impressions, plan an ad budget, or see how many impressions a budget buys.ROAS Calculator
Find return on ad spend, break-even ROAS from your margin, ACoS, and the revenue you need for a target.
Find your cost per 1,000 impressions, plan an ad budget, or see how many impressions a budget buys.ROAS Calculator
Find return on ad spend, break-even ROAS from your margin, ACoS, and the revenue you need for a target.
Marketing calculators
Ad and marketing metrics such as CPM and ROAS, with more on the way. See all marketing calculators.
Why trust these calculators
Formulas are shown on every page, with worked examples. Fee and benchmark figures come from named sources and show when they were last checked. Read how I calculate.
About HowCalculate
HowCalculate is run by Ajay Kumar, an SEO strategist and content writer with more than four years of experience. Learn more about the site.