Know your centering before you submit.
Measure any card in seconds and see exactly which grades it can still reach at PSA, Beckett, CGC and ACE.
- 4 grading companies
- Camera or upload
- 0 sign-ups
How it works
Three steps. About thirty seconds.
-
01
Snap or upload
Photograph the card flat on a plain surface, or upload an existing scan.
-
02
Place the markers
Drag guides to the outer edge and the inner artwork border on each side.
-
03
See what's possible
Get your ratio and a grade estimate for each company's centering standard.
Supported companies
Four graders, one measurement.
Front centering limits
How each company draws the line.
The most off-centre front each company allows for its top two grade tiers. The larger share is written first.
| Company | Top grade | Next grade |
|---|---|---|
| PSA | 55/4510 Gem Mint | 60/409 Mint |
| Beckett | 50/5010 Pristine | 55/459.5 Gem Mint |
| CGC | 50/5010 Pristine | 55/4510 Gem Mint |
| ACE | 60/4010 Gem Mint | 65/359 Mint |
Front of card, worst axis. Final grades also depend on corners, edges and surface. Checked October 2026; PSA and Beckett values could not be confirmed against their own pages.
Read the full guideFAQ
Centering, explained quickly.
What does 55/45 actually mean?
One border takes 55% of the combined width on that axis and the opposite border 45%. 50/50 is perfect. Grading companies write the larger share first.
Does good centering guarantee a high grade?
No. Corners, edges and surface are graded too. Centering is the one factor you can check yourself before paying to submit.
Is front or back centering stricter?
Fronts are stricter at every company. Backs usually allow far more drift, for example PSA 10 allows 75/25.
How do I get an accurate reading?
Shoot the card flat and square-on against a plain background, then zoom in and place each marker on the exact edge. Use the camera level if you are holding your phone.