eBay Profit Calculator
Free Tool — No Signup Required
Built by a fellow collector for sports card sellers. Enter your numbers and get instant profit, fees, and ROI — whether you're flipping a single card or a sealed hobby box.
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What the buyer pays you
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What you paid for the card
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USPS Ground Advantage: ~$4–6 for a card in a bubble mailer
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Purchase price of the box or lot
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What you plan to list it for
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Hobby box: ~$10–15 USPS Ground Advantage. Jumbo box: ~$15–22
Fee structure:
eBay Basic Store final value fee: 13.25% + $0.30 per order.
Managed payments processing: ~0.7%.
Rates current as of 2026 — verify at
ebay.com/sellingfees.
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