Card Centering Checker
Will your card's centering pass for PSA 10? Adjust the sliders to match your card's borders and instantly see centering grades across PSA, BGS, and CGC with value recommendations.
Measure Your Card's Centering
Hold your card and estimate the border width on each side. Enter the left border as a percentage of total left+right, and the top border as a percentage of total top+bottom. 50% = perfectly centered.
Your Centering Across Grading Companies
Grade Impact
Centering will NOT limit your grade. This is gem mint territory.
Value Tip
Perfect centering is the #1 factor that separates PSA 9s from PSA 10s. This card has maximum grading potential.
Centering Standards by Company
| Company | Gem (10) | Mint (9) | Note |
|---|---|---|---|
| PSA | 60/40 or better | 65/35 or better | Centering alone can prevent PSA 10 |
| BGS | 50/50 to 55/45 | 55/45 to 60/40 | Centering is a separate subgrade (1-10) |
| CGC | 55/45 or better | 60/40 or better | Similar to PSA but slightly more lenient |
| SGC | 60/40 or better | 65/35 or better | Most lenient on centering of the big 4 |
Centering Tips
- 1. Use a centering tool (ruler or card centering app) for precise measurement before grading
- 2. Left/right centering is weighted more heavily than top/bottom by most graders
- 3. Vintage cards (pre-1980) have looser centering standards — 65/35 can still gem
- 4. If centering is your only flaw, consider BGS where it is a separate subgrade
- 5. Some collectors prefer slight off-center cards — it proves the card is not trimmed
Frequently Asked Questions
What centering ratio does PSA require for a PSA 10?
PSA requires centering of approximately 60/40 or better (on both left/right and top/bottom) for a PSA 10 Gem Mint grade. This means the border on one side can be at most 1.5x the border on the opposite side. Anything worse than 60/40 will typically cap the card at PSA 9 regardless of the condition of the corners, edges, and surface.
How does BGS handle centering differently than PSA?
BGS (Beckett Grading Services) gives centering its own separate subgrade from 1 to 10. This means a card with 9.5 corners, 9.5 edges, 9.5 surface, but 8.5 centering would get a BGS 9.5 overall rather than being completely capped by centering. This makes BGS a better choice for cards with good condition but slightly off centering.
Is left/right centering more important than top/bottom?
Yes, most grading companies weight left/right centering more heavily than top/bottom. Left/right off-centering is more visually noticeable because the eye naturally compares the two sides. A card with 55/45 left/right and 60/40 top/bottom would likely grade higher than one with 60/40 left/right and 55/45 top/bottom.
How do I accurately measure my card centering?
Use a millimeter ruler to measure the border on all four sides. Divide each side's measurement by the total of both sides (left + right, or top + bottom) to get the percentage. For example, if the left border is 2mm and the right border is 3mm, the centering is 40/60 (2/(2+3) = 40%). Phone apps like PSA Scanner and Centering Check can help with quick estimates using your camera.
Do vintage cards have different centering standards?
Vintage cards (generally pre-1980) are typically graded with more lenient centering standards because printing technology was less precise. A 1952 Topps card with 65/35 centering might still qualify for higher grades than a 2024 card with the same centering. Graders understand that truly well-centered vintage cards are exceptionally rare, and the market values them accordingly.
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