ROAS Calculator
Return on ad spend is revenue divided by ad spend. Add your profit margin to see break-even ROAS, which tells you whether the campaign actually makes money.
Campaign
ROAS
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How it's calculated
ROAS = Revenue ÷ Ad spend
Break-even ROAS = 1 ÷ Profit margin
Profit after ads = Revenue × Margin − Ad spend
- A 4× ROAS sounds good, but at a 20% margin you need 5× just to break even.
- Platform-reported ROAS uses each platform's attribution window. Check it against revenue in your store or analytics.
- For repeat-purchase businesses, a ROAS below break-even on the first order can still pay off over the customer's lifetime.