01 Enter your costs, excluding ad spend
Nothing you enter is sent anywhere
What this works outCosts → max ad spend per sale → required ROAS
Don’t include ad spend here. Enter your current ad results in the optional comparison below the result.
Use the same currency for every amount
The calculator has no built-in currency. Enter the selling price, product cost, shipping and fees in one currency, whether that’s USD, EUR, GBP or anything else, and the results are in that same currency. ROAS itself is a percentage, so it doesn’t depend on the currency.
How it’s calculated
- Margin before ad spend = selling price − (product cost + shipping + selling fees + payment fees + other variable costs)
- Max ad spend per sale = margin before ad spend
- Break-even ROAS = selling price ÷ max ad spend per sale × 100 (%)
Worked example
A product sells for 10,000 with a product cost of 4,000 and other costs of 1,000. That leaves 5,000 before ads, a 50% margin. Break-even ROAS is 10,000 ÷ 5,000 × 100 = 200%. If your ads return less than 200% of their cost in revenue, each sale loses money.
Reading the comparison
Enter your current ad spend and the revenue it brought to see your current ROAS next to the break-even line. Within ±5% of break-even counts as roughly break-even; for a 200% break-even that is 190–210%.
What it doesn’t include
Only per-sale variable costs are counted. Fixed costs such as salaries, rent, software subscriptions and taxes are not, so staying above break-even ROAS does not guarantee the business as a whole is profitable.
FAQ
What is a good ROAS?
There is no universal number. A product with a 50% margin breaks even at 200% ROAS, while one with a 25% margin needs 400%. Use your own break-even ROAS as the baseline.
Should I include ad spend in the costs?
No. Enter costs excluding ads. The calculator works out how much you can spend on ads per sale and turns that into the minimum ROAS.
Is break-even ROAS the same as break-even CPA?
They describe the same limit in different units. If one purchase equals one conversion, the max ad spend per sale is your break-even CPA.
Why does it say it can’t calculate?
If your costs before ads are equal to or higher than the selling price, there is no margin left for ads, so no ROAS can break even. Review your price or costs.