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Free Tool · No Sign-Up Needed

Card Flipping
Calculator.

Punch in the numbers before you hit buy. See your projected profit, ROI, and break-even price the instant you type. No more napkin math, no more "I think I made money on that one."

· The flip
$
$
$
%
$
· Your numbers Live
Projected profit
$0
after every fee, ship, and grade
ROI
0%
return on cash in
Break-even price
$0
need to sell above this
· Cost breakdown
Sale price$0.00
Marketplace fees−$0.00
Purchase−$0.00
Grading−$0.00
Shipping & supplies−$0.00
Net profit$0.00
Enter your numbers above to see if this flip is worth your cash.
Track every flip — free in beta
Free while CollectingHQ is in beta testing. No credit card, no checkout.
From one flip to your whole portfolio

The calculator is free. The real edge is the dashboard.

One-off math is fine for one card. But when you're moving 50, 100, 500 cards a year, you need real P&L across every flip. Collecting HQ tracks every dollar in, every fee out, every period — automatically.

01

Every flip, tracked

Log purchases in seconds. Cost basis, grading, shipping — all stored, all synced, never lost in a spreadsheet.

02

eBay CSV import

Drop your monthly sales report. Fees parsed. Period auto-detected. Math correct to the penny.

03

Real P&L, any period

Net profit per month, per platform, per card. Tax-ready exports any time. Your data is always yours.

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