Key Takeaways
- ROAS = Revenue / Ad Spend. A 4:1 ROAS (every $1 generates $4) is a common e-commerce benchmark.
- ROAS alone is misleading: a 400% ROAS on 20% margin products means you barely break even after costs.
- Use Target ROAS bidding in Google Ads to automate bid optimization toward your profitability threshold.
Calculating and Interpreting ROAS
ROAS = Revenue from Ads / Cost of Ads. But raw ROAS is not a profitability metric. You need to account for product cost, shipping, payment processing, and overhead to determine your break-even ROAS.
Break-Even Formula
Break-even ROAS = 1 / Profit Margin. If your margin is 40%, break-even ROAS = 1/0.4 = 2.5:1. Anything above 2.5:1 is profitable. Set your target ROAS above break-even to ensure actual profit.
Frequently Asked Questions
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