Break-even calculator
Free toolFind the most you can spend to win a sale, and the ROAS you need, before a single ad runs.
Enter your price and costs
Needs product price and product cost.
Max acquisition cost
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Break-even ROAS
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Margin before ads
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Cost per sale
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Advanced break-even
Hit a profit target, and see how your current costs compare.
Target CPA
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Max ad cost per sale at your target margin
Needs product price and product cost.
Target ROAS
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ROAS needed for your target margin
Needs product price and product cost.
Break-even conversion rate
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Minimum to not lose money
Needs product price and product cost.
CPA headroom
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Room left per sale
Needs product price and product cost.
How this works
Each sale earns its price minus its costs. That margin is the most an ad can cost you per sale without losing money.
Break-even ROAS = price ÷ that margin. With a $100 price and $35 in costs: 100 ÷ 65 = 1.54×.
Fixed costs (agency fees, tools) aren’t included here because they don’t grow per sale. The campaign calculator includes them in your profit.