Marketing ROI
Break-Even ROAS Calculator
Your break-even ROAS is 1 divided by your gross margin. At a 25% gross margin it is 4.0x — your ads must return $4 of revenue per $1 spent just to cover product costs and the ads themselves. Enter your margin (or your price and product cost) below to find the exact ROAS your advertising has to beat.
What is a good break-even ROAS?
Break-even ROAS is not a target to admire — it is a floor to stay above. The lower your gross margin, the higher it climbs: a 50% margin breaks even at 2.0x, a 25% margin at 4.0x, and a thin 10% margin at a punishing 10.0x. If your break-even ROAS is above about 5x, advertising profitably is genuinely hard, and raising margin (price or product cost) usually matters more than better ads.
How it works
Break-even ROAS comes from one observation: the only money available to pay for advertising is the gross margin on the sales the ads generate. If a product sells for $80 and costs $50, each sale contributes $30 — a 37.5% margin — toward ads and profit. Advertising breaks even when the ad cost per sale exactly equals that contribution. Whether you searched for a break-even ROAS calculator, a BE ROAS calculator or a target ROAS calculator, the formula is:
Break-even ROAS = 1 ÷ gross marginGross margin = (price − product cost) ÷ priceWith a margin of 37.5% (0.375), break-even ROAS = 1 ÷ 0.375 = 2.67x. Any campaign returning more than 2.67x is profitable on a per-sale basis; anything below it loses money no matter how healthy the ROAS looks in the ad account. This is also why margin is destiny in advertising: doubling your margin halves the ROAS you need.
Break-even ROAS by gross margin
| Gross margin | Break-even ROAS (ratio) | Break-even ROAS (%) | Revenue needed per $100 of ad spend |
|---|---|---|---|
| 10% | 10.00x | 1000% | $1,000 |
| 20% | 5.00x | 500% | $500 |
| 25% | 4.00x | 400% | $400 |
| 33.3% | 3.00x | 300% | $300 |
| 40% | 2.50x | 250% | $250 |
| 50% | 2.00x | 200% | $200 |
| 60% | 1.67x | 167% | $167 |
| 75% | 1.33x | 133% | $133 |
Source: The formula break-even ROAS = 1 ÷ gross margin, applied to each margin. Gross margin here means price minus the direct cost of the product, divided by price. Last verified: November 2026
Worked examples
Example 1 — a 25% gross margin business
| Gross margin | 25% |
| Break-even ROAS | 4.0x |
| Break-even ROAS (%) | 400% |
| Revenue needed per $100 of ad spend | $400.00 |
This is the hidden maths behind the popular ‘4x ROAS is good’ rule — it is only good if your margin is around 25%.
Example 2 — an $80 product costing $50 (margin from price and cost)
| Selling price | $80.00 |
| Product cost | $50.00 |
| Gross margin | 37.5% |
| Break-even ROAS | 2.67x |
| Break-even ROAS (%) | 266.7% |
Example 3 — a thin-margin dropshipper at 12.5%
| Gross margin | 12.5% |
| Break-even ROAS | 8.0x |
| Break-even ROAS (%) | 800% |
| Revenue needed per $100 of ad spend | $800.00 |
At this margin, even a strong 5x campaign loses money. The fix is margin — price, product cost or offer — not more ad spend.
When these fees apply — and the limitations
Break-even ROAS is a per-sale contribution measure. Remember what it leaves out:
- Fixed costs — rent, salaries, software and your ad management time are not in the margin. A campaign above break-even ROAS contributes toward them; it does not prove the business is profitable overall.
- Fees on the revenue — marketplace and payment fees (Etsy’s ~9.5%, Stripe’s ~3%) come out of the same revenue. Strictly, your margin for this calculation should be after the fees on a typical order — a useful refinement is to subtract your platform fee percentage from the gross margin first.
- Returns and refunds reduce real revenue; if 10% of orders come back, effective margin falls with them.
- Repeat purchases cut the other way: if customers buy again without new ad spend, you can rationally run first orders slightly below break-even ROAS. That is a deliberate lifetime-value strategy, not an accounting error — but know which one you are doing.
Comparing your options
Use this page and the ROAS calculator as a pair: calculate the ROAS your campaigns actually achieve, then compare it with the break-even figure here. And if you want the same break-even logic for the business as a whole — the units you must sell to cover rent, salaries and software — the break-even calculator does it from fixed and variable costs.
Frequently asked questions
How do you calculate break-even ROAS?
Divide 1 by your gross margin expressed as a decimal. A 40% margin is 0.40 as a decimal, so break-even ROAS = 1 ÷ 0.40 = 2.5x (250%). If you know price and product cost instead: margin = (price − cost) ÷ price. An $80 product costing $50 has a margin of 37.5%, giving a break-even ROAS of 2.67x.
What ROAS do I need to make a profit?
Any ROAS above your break-even ROAS makes a per-sale profit, and the gap is your cushion. At a 2.67x break-even, a campaign at 3.5x earns roughly (3.5 − 2.67) ÷ 3.5 ≈ 24 cents of contribution per revenue dollar before fixed costs. Many advertisers target break-even ROAS plus 20–30% as their working goal to leave room for fixed costs and fluctuation.
Why is my break-even ROAS so high?
Because your gross margin is low — the two are locked together. A break-even ROAS above 5x means a margin under 20%, and at that level almost no ad platform can save the business model. The realistic fixes are on the margin side: raise price, cut product cost, bundle products to raise order value, or reduce the fees taken out of each order.
Should I include shipping and fees in the margin?
Use the margin that reflects a real order: price minus product cost, minus any per-order platform and payment fees, with shipping handled consistently (if customers pay shipping separately, keep it out of both sides). Fees matter — a store paying Etsy about 9.5% per order should subtract roughly that from its product margin before computing break-even ROAS.
What is the difference between target ROAS and break-even ROAS?
Break-even ROAS is the floor calculated from your margin — below it, ads lose money. A target ROAS (including the tROAS bidding strategy in Google Ads) is a goal you set, which should sit above your break-even figure by whatever cushion you want for fixed costs and profit. Confusing the two — setting a target at or below break-even — is a quiet way to scale losses.
Read the guide: What Is ROAS? (And What a Good ROAS Looks Like) — why break-even ROAS, not a benchmark, decides whether your ads make money.
Related calculators
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