Trading Card Condition Calculator
Estimate the PSA-style grade of a trading card based on corners, surface, centering, and edges.
How to Use the Card Condition Calculator
- Select the corner condition.
- Select the surface condition.
- Enter the centering percentage (50–100%).
- Select the edge condition.
- Click Calculate to get the estimated grade and grade name.
Cas d'utilisation
- •Pre-screening cards before professional grading submission.
- •Estimating value based on condition.
- •Learning card grading standards.
- •Sorting collection by approximate grade.
Formule
Grade = average of corner score + surface score + edge score + centering score (each out of 10).
Questions fréquemment posées
What grading scale does this use?
This uses a 1–10 scale similar to PSA (Professional Sports Authenticator), where 10 is Gem Mint and 1 is Poor.
What centering percentage should I enter?
Centering is measured as the percentage of the narrowest border relative to the widest. 98%+ is considered superb. Below 80% is typically off-center.
Is this the same as PSA grading?
No. This is an estimate for educational purposes. For official grading, submit your card to PSA, BGS, or CGC.