Launch offer: Try the full app free for 7 days, then $4.99/month — cancel anytimeClaim →
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 for 7 days
$0 for the first 7 days, then $4.99/month. Cancel anytime.
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. Cancel anytime.

Start your 7-day free trial
No card charged for 7 days. Already have an account? Log in