Good ROAS Benchmarks for Ecommerce
There's no single 'good' ROAS — it depends entirely on your margin. Here's the break-even formula and typical target ranges.
By Marginory team · Online sellers with hands-on experience across Etsy, Shopify & PODUpdated Fee data verified against official platform documentation
The break-even ROAS formula
Break-even ROAS = 1 ÷ Profit margin (as decimal)
This is the ROAS at which ad spend exactly offsets your margin — anything above it is genuinely adding profit, anything below it means ads are losing money even though they're generating sales.
Break-even ROAS by margin
| Profit margin | Break-even ROAS |
|---|---|
| 15% | 6.7x |
| 20% | 5.0x |
| 25% | 4.0x |
| 33% | 3.0x |
| 50% | 2.0x |
Why generic "good ROAS" numbers mislead
A "good" 4x ROAS is genuinely profitable at a 25% margin business but could be a loss at a 15% margin business (where break-even is 6.7x). Always calculate your own break-even before benchmarking against generic industry numbers.
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Frequently Asked Questions
What is a good ROAS for ecommerce?
It depends on your margin — a common rough target is 3-4x for many stores, but the right number is the break-even ROAS (1 ÷ margin %) plus a profit buffer, not a fixed industry number.
How do I calculate my break-even ROAS?
Break-even ROAS = 1 ÷ your profit margin (as a decimal). At a 25% margin, break-even ROAS is 4x — spend $1 to generate $4 in revenue just to cover costs, with anything above that being profit.
Is a higher ROAS always better?
Generally yes for profitability per dollar spent, but an extremely high ROAS can sometimes mean you're under-spending on ads relative to your profitable capacity, potentially limiting growth.