1 · CenteringCentering sets the ceiling
63/37 on the front can't be a 10, so the best is a 9. Measure it free.
PSA grading calculatorIs your card worth grading?
Centering, condition and sold prices in. Your profit at each grade out, after PSA fees, shipping and selling fees.
FreeCurrent PSA feesNothing saved
The calculator
Run the numbers
Filled in from your checks
Filled in with a real example: Umbreon GX 142 from my Sleeper Alerts (PriceCharting, Oct 31). Change any number for your card.
Verdict
-Best possible grade
-Expected gain
-weighted by the grade oddsSee the numbers
| Grade | Odds | Net | vs raw |
|---|
Odds are a rough estimate from PSA's or Beckett's centering limits and your check, not grading company data. A BGS 10 also needs near-perfect subgrades, so its odds are lower. Net = sold price minus all fees and shipping.
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How it works
Three things decide it
1 · Centering
2 · ConditionFlaws lower the odds
Each flaw you mark shifts the odds to lower grades. Check the surface.
3 · Prices
Prices become profit
Sold price minus PSA fee, shipping and selling fees, at every grade.
Reading the result
What the verdict means
Worth grading
You come out ahead even with a weaker grade.
Borderline
Only pays off with the top grade.
Keep it raw
You'd lose money on average.
Quick tips
Four habits that keep the math honest.
- Use sold pricesFrom the last 30 to 60 days, not asking prices.
- Batch your cardsShipping costs less per card.
- Watch the max valuePSA charges extra above it. The calculator warns you.
- Keeping it?Read "vs raw" as the cost of protecting the card.
Need ideas?
Cards I think are worth grading
Every Sleeper Alert comes with the same math: raw, PSA 9, PSA 10 and profit.
Frequently asked questions
Are these grade odds accurate?
They're a rough guide, not a prediction. They come from PSA's published centering limits and the condition check you enter. Real results depend on things a quick look can miss, like print lines or tiny surface marks. Treat the table as a range of outcomes to plan for.
What's the cheapest way to grade with PSA?
As of October 29, 2026, Value is PSA's lowest open tier at $39.99 per card for cards worth up to $500. Value Bulk is paused. Submitting several cards in one package also lowers shipping per card.
Which selling fee should I use?
For eBay, about 13.6% of the total covers most trading card sales. Use 0% if you plan to keep the card, or your own rate for other marketplaces.
Is anything I enter saved or sent anywhere?
No. The calculator runs in your browser. Nothing is sent to a server or stored.
Does it work for BGS or CGC?
The centering limits and prices are set up for PSA. You can enter another company's fee as "Other amount", but its centering limits are stricter, so the best grade shown may be too optimistic. See the PSA vs BGS vs CGC comparison.