About the Break-Even ROAS Calculator
The minimum return on ad spend (ROAS) needed to break even, from your profit margin before ad costs.
Also known as: breakeven roas, minimum roas, target roas.
How to use this calculator
- Enter profit margin before ads.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Break-even ROAS = 1 ÷ margin
Worked example
Using the values pre-filled in the calculator above:
- Profit margin before ads = 40 %
the calculator returns:
- Break-even ROAS: 2.5 ×
- Max ad spend share of revenue: 40%