The calculation uses the entered values only, so the result depends on accurate cost and revenue assumptions.
Break-even ROAS Calculator
Find the ROAS you need before an ad campaign breaks even, based on margin and direct costs.
Quick answer
Break-even ROAS Calculator: The Break-even ROAS Calculator estimates the minimum return on ad spend required before a campaign stops losing money. It is especially useful for ecommerce pricing and paid ads planning.
A concrete example makes it easier to check whether your result is realistic.
This is one of the easiest ways to misread the result.
How to interpret the result
If actual ROAS is below break-even ROAS, the campaign is likely losing money before overheads. If it is above break-even, the campaign may be profitable, but overheads and returns still matter.
Methodology
The calculator converts margin into a decimal and divides 1 by that margin. This gives the revenue multiple needed to cover ad spend at break-even.
What this tool helps with
Use this calculator to find the minimum ROAS you need before a campaign stops losing money.
Formula
Break-even ROAS = 1 ÷ gross margin as a decimal. If extra variable costs apply, use contribution margin after those costs.
Example
If your product keeps 40% of revenue after direct costs, break-even ROAS is 1 ÷ 0.40 = 2.5. That means £1 in ad spend needs about £2.50 in revenue to break even.
What to check before relying on the number
Do not calculate break-even ROAS from selling price alone. Use the margin left after product cost, platform fees, payment fees and fulfilment costs when possible.
Frequently asked questions
Lower margin leaves less money from each sale to pay for ads, so the campaign needs more revenue per pound spent.
Yes, if they reduce the money left from each sale. Including them makes the break-even ROAS more realistic.
How to use this calculator well
Use this before scaling paid ads. It tells you the minimum ROAS target to watch, but it should be paired with profit, cash flow and conversion-rate checks.
For best results, use numbers from the same source and the same period. Mixing monthly costs with single-order revenue, or gross revenue with net cost, can make the result look better than it really is.
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