What this calculator does
Break-even ROAS is the return on ad spend at which a campaign makes exactly zero profit. Anything above it is money earned, anything below it is money bought. This calculator derives that threshold from your product economics so you have a fixed line to judge every campaign against instead of guessing whether a 2.1× return is good.
How to use it
- Enter your selling price, or your average order value if customers commonly buy more than one item.
- Enter the product cost charged by your supplier per unit.
- Enter your shipping cost per order, including packaging if you pay for it.
- Enter your transaction fees — gateway percentage plus fixed fee, and any platform commission.
- Compare the break-even ROAS shown against the ROAS your ad account currently reports. If your live ROAS is below it, the campaign is losing money however good the creative looks.
The formula, explained
The logic is simpler than it looks. Gross profit is the money you have left to spend on advertising. If you spend exactly that much per sale, you break even, so the revenue you generate divided by the ad spend you tolerated gives you the ratio.
ACOS — advertising cost of sale — is the same idea inverted, expressed as a percentage of revenue. Some platforms and agencies prefer it, so the calculator shows both. A 2.0× break-even ROAS is identical to a 50% break-even ACOS.
A worked example
A skincare set sells for 49.99. Product cost is 18.50, shipping 4.50 and fees 1.75, so gross profit per order is 25.24.
Break-even ROAS is 49.99 ÷ 25.24 = 1.98×. In practice that means every dollar of ad spend must return roughly two dollars of revenue simply to stand still. If you want a 15% net margin on top, the calculator shows you need closer to 2.85×, which is a very different targeting brief for whoever runs the ads.
| Selling price | 49.99 |
|---|---|
| Gross profit per order | 25.24 |
| Break-even ROAS | 1.98× |
| Break-even ACOS | 50.5% |
| ROAS for 15% net margin | 2.85× |
What a good result looks like
Break-even ROAS is a function of margin, so the healthier your product economics, the lower and friendlier the number.
| Range | What it means |
|---|---|
| Below 1.7× | Excellent. High-margin products with room to scale aggressively. |
| 1.7× to 2.5× | The typical range for a well-priced dropshipping product. |
| 2.5× to 4× | Demanding. Achievable, but only with strong creative and tight targeting. |
| Above 4× | The margin is too thin to buy cold traffic against. Reprice or repick. |
Common mistakes
- Using revenue including tax. Ad platforms often report revenue tax-inclusive. If your break-even is calculated on the net price, you will believe campaigns are profitable when they are not.
- Judging ROAS on day one. Attribution windows and delayed purchases mean early ROAS understates the truth. Compare against break-even after the window closes, not during.
- Forgetting that ROAS is gross, not net. Break-even ROAS ignores fixed costs like your platform subscription and your own time. Clearing it means you lost nothing on the product, not that the business made money.
- Applying one break-even to a whole catalogue. A store with items from 15 to 120 has several break-even points. Calculate per product or per collection, or your blended target will be wrong for everything.
- Ignoring returning customers. If a meaningful share of buyers reorder, first-order break-even is too strict a test. Use the lifetime value calculator to set a fairer ceiling.
Frequently asked questions
What does break-even ROAS actually mean?
It is the point at which the revenue from a campaign exactly covers the cost of the products sold and the ads that sold them. At break-even ROAS you finish the day with the same money you started with, having moved a lot of stock. It is the minimum acceptable performance, not a target.
Is a 3× ROAS good?
Only relative to your break-even. On a 60% margin product with a 1.7× break-even, a 3× ROAS is excellent. On a 25% margin product with a 4× break-even, that same 3× is losing you money on every order. The number alone tells you nothing without the margin behind it.
How is break-even ROAS different from break-even CPA?
They describe the same threshold in two units. ROAS is a ratio of revenue to spend; CPA is an absolute amount per customer. ROAS is easier to compare across products at different price points, CPA is easier to hand to someone managing campaigns day to day.
Should I include shipping revenue in the price?
Yes, if the customer pays for shipping separately, add it to the price and keep your shipping cost in the cost side. Shipping income offsets shipping expense, and leaving it out makes your break-even look worse than it is.
What if my break-even ROAS is impossible to reach?
Then the product is priced wrong, sourced wrong, or is not an advertising product. Options are raising the price, negotiating supplier cost, increasing average order value with bundles, or accepting the product only works through organic and email channels.
How this fits with your other numbers
Break-even ROAS turns your ad account into something you can judge objectively. Without it, every campaign report is a matter of opinion; with it, there is a fixed line and each campaign is either above or below. Pin the figure somewhere your whole team can see, and update it whenever the product economics change.
It pairs naturally with break-even CPA. ROAS is the better metric when you are comparing products at very different price points, because it normalises for order value; CPA is easier to work with day to day when you are managing a single product's campaigns. Most stores end up quoting both — ROAS for strategy meetings and CPA for the person actually adjusting budgets.