SellMath / Advertising
Break-even ROAS Calculator
Find the ROAS and acquisition cost needed to break even after product costs, shipping and selling fees.
Your estimate
- ROAS
- Contribution before ads
- Profit margin
- Break-even cost per acquisition
Calculated in your browser. Your entries are not sent anywhere.
How the calculation works
Contribution = order revenue − product cost − shipping cost − other variable costs Break-even ROAS = order revenue ÷ contribution Break-even CPA = contribution
A dash means the ratio is undefined or the target cannot be reached.
Frequently asked questions
Which costs should I include?
Include all variable costs per order before advertising: product cost, seller-funded shipping, platform fees and expected returns. Use revenue net of tax. Fixed overhead is excluded unless you allocate it to the order.
What if my contribution is zero or negative?
There is no finite break-even ROAS or positive advertising budget. The order does not produce a positive contribution before ads.
Is break-even ROAS a profit target?
No. It covers only the costs entered. A higher ROAS is needed to fund omitted overhead and earn a profit.