// Free Tool — No Signup Required
Flip Profit Calculator
Before you buy a single card to flip, run the numbers. This tool accounts for every fee so you know your real net margin, not the fantasy version.
Inputs
All amounts use this symbol. No FX conversion — enter values in your chosen currency.
What you pay including shipping in
Use 30-day sold comps, not asking prices
Presets use each platform's published US/UK rates — edit the fee fields below if yours differ.
Total % taken off your sale (final value + processing)
Fixed per-order fee (many platforms charge 0.30)
USPS Ground Advantage / Royal Mail 2nd class large letter ≈ 4.50
Top loader + team bag + mailer
Results
Gross sale price
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− Platform fee (%)
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− Flat / per-order fee
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− Outbound shipping
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− Packaging supplies
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− Sales tax paid (retail buy)
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− Buy cost
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Net Profit
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Break-even sale price
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Sell above this to make any money
Max Buy Price (for 30% ROI target)
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Don't pay more than this if you want 30% return
// Use it right
HOW TO READ THIS
Break-even price is the minimum sale price where you lose no money. It already accounts for platform fees, shipping, supplies, and the card cost itself. If you can't sell above this number, walk away.
Max buy price works in reverse — given the current comp, the tool shows you the highest you should pay to still hit a 30% ROI target.
A good flip target is 30%+ net ROI. At 10–20% you're working for minimum wage.