Selling online looks simple until fees, ads and returns take their cut. This calculator shows your true profit per order after product cost, shipping, platform fees, advertising and returns — plus the break-even ROAS your ads must beat to make money.

Advanced Ecommerce Calculator

Profit per order, margin and break-even ROAS for online sellers.

Profit per order after returns
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Profit per order before returns
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Margin after returns
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Break-even ROAS
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Platform fee per order
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Enter valid values in every field to see your result. Check for blanks, text in number fields, or a combination that cannot be calculated (shown in the notes under How it works).

How it works

Platform fee = price × fee%. Profit per order = price − product cost − shipping − platform fee − ad cost. The returns adjustment multiplies that profit by (1 − returns%), a simple way to spread the cost of returned orders across all orders. Break-even ROAS = price ÷ (price − product cost − shipping − platform fee): below this return on ad spend, ads lose money.

Estimates only — not financial, tax, or professional advice. Figures depend entirely on the values you enter; confirm important decisions with a qualified professional.