What is a good ROAS for ecommerce? Benchmarks by margin
A good ROAS is any ROAS above your break-even point, which is 1 divided by your contribution margin. At a 50% margin, break-even ROAS is 2.0; at 30%, it's 3.33. For context, the median Meta ROAS across more than 40,000 brands was 1.88 from August 2025 to July 2026. Judge ads on MER, not platform ROAS alone.
A good ROAS is any ROAS above your break-even ROAS, which is 1 divided by your contribution margin before ad spend. At a 50% margin, break-even is 2.0. At 30%, it's 3.33. The common "4:1" rule is fine for some brands and a money-loser for others, so work out your own target and check it against MER.
What is ROAS?
ROAS, return on ad spend, is ad revenue divided by ad spend. If $1,000 in ads brings $3,000 in sales, ROAS is 3.0, often written 3:1 or 300%. Each platform reports its own ROAS, using its own attribution rules.
What is a good ROAS?
A good ROAS is one above your break-even ROAS. Break-even ROAS is 1 divided by your contribution margin before ad spend: what's left of each sales dollar after product cost, shipping, fulfillment, payment fees, discounts and returns. Below break-even, the campaign doesn't cover its ad cost on first orders. Above it, it does, before fixed costs and before any repeat purchases. This assumes the platform's reported revenue is real, and platform numbers often run high.
What is break-even ROAS at different margins?
| Contribution margin | Break-even ROAS | What it means |
|---|---|---|
| 30% | 3.33 | Each $1 in ads needs $3.33 in sales to break even |
| 40% | 2.50 | Costs take 60% of each sale; ads need a high return |
| 50% | 2.00 | A 2.0 ROAS is break-even, not a win |
| 60% | 1.67 | Room to spend for growth |
| 70% | 1.43 | Ads can run on a thinner return and still profit |
| 80% | 1.25 | Can scale on thin ROAS if customers reorder |
To see it in dollars, take $10,000 in sales at a 50% contribution margin, so $5,000 is left before ads:
| Ad spend | ROAS | Left after ads |
|---|---|---|
| $2,000 | 5.0 | $3,000 |
| $2,500 | 4.0 | $2,500 |
| $5,000 | 2.0 | $0 |
| $6,000 | 1.67 | −$1,000 |
Fixed costs like salaries, rent and software still come out of what's left.
Is a 4:1 ROAS good?
Usually, but not always. A 4.0 ROAS clears first-order break-even for any brand with a contribution margin above 25%. Below 25%, it loses money unless customers reorder. Plenty of brands with healthy margins profit at well under 4.0.
Put your own numbers in the ROAS calculator to get break-even ROAS and MER in one place.
What is the average ROAS for Meta ads?
Triple Whale's benchmark data on over 40,000 brands that use its platform puts the median Meta ROAS at 1.88 from August 2025 to July 2026. By industry, the median ran from 1.13 in media and publishing to 2.35 in sports and outdoors. The median CPA was $38.99.
At a 50% margin, that 1.88 median loses money on the first order, and plenty of brands in the sample run below it. Benchmarks show what's typical. Your own margin decides what's profitable. For how much to spend while you find out, see how much a startup should spend on ads.
Why can a low ROAS still be a good one?
The first order isn't the whole customer. If customers reorder, a new-customer campaign can run below break-even on the first purchase and still pay off through later orders, as long as you know how fast customers reorder and can fund the gap until they do. Retargeting also often reports higher ROAS than prospecting, because it reaches people already close to buying. Some of those buyers would have bought anyway.
Set separate targets: a lower ROAS for new customers, a higher one for returning customers, and check the payback with the LTV calculator.
Why isn't platform ROAS enough?
Each platform uses its own attribution rules. Meta, Google and TikTok can each count the same sale, so their ROAS figures add up to more revenue than you actually made. That's why the number that decides budget should be MER: total revenue divided by total marketing spend (ads, fees, creative and tools), straight from your store and your invoices.
If MER holds while you raise spend, the extra spend is likely paying its way. If MER drops, check whether new-customer revenue and contribution profit still justify the spend before you pull back. MER measures the whole business and can't isolate what the ads caused, so read it next to contribution profit and new-customer numbers. The full comparison is in what MER is and why it beats ROAS.
How do you improve ROAS?
- Raise average order value with bundles, upsells and free-shipping thresholds.
- Refresh creative regularly; a falling click-through rate is often an early sign an ad is wearing out.
- Fix the landing page. A higher conversion rate lifts ROAS without touching the ads.
- Cut losers weekly and move budget to the ads and audiences that hold.
- Improve margin. A better margin lowers break-even ROAS, which gives the ads room to scale.
Final thoughts
Know your break-even ROAS before you judge a campaign, and use MER as the business-level check before you scale. If you want a team that manages every channel to one MER target, see Wadabu's paid ads service.
Frequently asked questions
What is a good ROAS for ecommerce?
A good ROAS for ecommerce is any ROAS above your break-even ROAS, which is 1 divided by your contribution margin. At a 50% margin, break-even is 2.0; at 30%, it's 3.33. A 4:1 ROAS clears break-even for any brand with a contribution margin above 25%, but the right target depends on margin and repeat purchases.
What is the average ROAS for Facebook ads?
Triple Whale's data on over 40,000 brands puts the median Meta ROAS at 1.88 from August 2025 to July 2026, ranging from 1.13 to 2.35 by industry. Brands running below break-even on first orders need repeat purchases to make new customers profitable.
Is a 2.0 ROAS good?
It depends on margin. At a 50% contribution margin, a 2.0 ROAS is exactly break-even. At a 70% margin, it's profitable on the first order. At a 30% margin, it loses money unless customers reorder.
What is the difference between ROAS and MER?
ROAS is ad revenue divided by ad spend, as reported by each platform. MER is total store revenue divided by total marketing spend. Platforms can each claim credit for the same sale, so MER gives a more honest view of the whole business. It doesn't prove what the ads caused on their own.
Meta ROAS and CPA: Triple Whale Meta ads benchmarks (40,000+ brands, August 2025 to July 2026, updated August 2026).
Written by Andrew Zam, Founder of Wadabu, a growth marketing agency for consumer-brand startups.
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