Grading ROI Calculator

Grading only pays when the expected bump in value beats the fees. Enter your card’s numbers below — the calculator shows the expected value of grading at your grade odds, next to what you’d clear selling it raw today.

Your Inputs

Raw Value Today$Grading Fee$Per card, at your chosen service level.Shipping (Round Trip)$Marketplace Fee%eBay ≈ 13%. Set 0 for cash sales.

Grade Odds & Sale Prices

Odds are normalized to 100% automatically. Prices prefill from typical multiples of raw value — override them with real comps when you have them.

Gem Mint (10)%$

Mint (9)%$

NM-MT (8)%$

7 or lower%$

Verdict: Grade It

Grading looks +EV

Expected edge from grading: +$44 per card at these odds.

Grade & Sell (EV)

$131

After grading fee, shipping & marketplace fee

Sell Raw Today

$87

After marketplace fee

Grade	Odds	Sale Price	EV Share
Gem Mint (10)	20%	$400	$70
Mint (9)	45%	$180	$70
NM-MT (8)	25%	$110	$24
7 or lower	10%	$75	$7

How the math works

Expected graded proceeds = Σ (probability of each grade × your estimated sale price at that grade × (1 − marketplace fee)). We then subtract the grading fee and round-trip shipping. “Sell raw” is simply today’s raw price minus the marketplace fee. The difference is your expected profit (or loss) from grading. Estimates only — set the grade odds honestly, they dominate the result.