Free Tool
Card Centering Calculator
Measure your card's borders and calculate centering ratios instantly
Enter Border Measurements
Measure each border in millimeters using a ruler or digital caliper for best results.
Left/Right Centering (Front)
Top/Bottom Centering (Front)
Left/Right
50/50
Top/Bottom
50/50
Centering Grade Potential
10
Perfect Centering!
Est. Value Impact ($1,000 Baseline)
$0
loss
Potential resale value reduction due to centering
Visual Preview
Understanding Centering Ratios
What is Centering?
Centering measures how well the printed image is positioned within the card's borders. It's expressed as a ratio comparing opposite borders.
Example: If the left border is 3mm and the right is 2mm, the ratio is 60/40 (3÷5=0.6 or 60%).
PSA Centering Requirements
| Grade | Front | Back |
|---|---|---|
| PSA 10 | 60/40 or better | 75/25 or better |
| PSA 9 | 65/35 or better | 90/10 or better |
| PSA 8 | 70/30 or better | No limit |
BGS Centering Scale
| Subgrade | Requirement |
|---|---|
| 10 | 50/50 (Perfect) |
| 9.5 | 55/45 or better |
| 9 | 60/40 or better |
| 8.5 | 65/35 or better |
Tips for Measuring
- Use a ruler with millimeter markings or digital calipers
- Measure at multiple points along each border
- Account for any border variations in your measurements
- Consider both front AND back centering for PSA submissions