Is my card centered enough for a PSA 10?
Snap a photo to get your card's exact centering, like 55/45, and the top grade it allows at PSA, BGS, CGC and SGC. Know if it's worth grading before you pay.
Drop a photo or paste an image
Runs on your device. Your photo is never uploaded.
| Front | Back | |
|---|---|---|
| PSA | 55/45 | 75/25 |
| BGS | 52/48 + 55/45 | 60/40 |
| CGC | 55/45 | 75/25 |
| SGC ≈ | 55/45 | — |
Centering ceiling · Gem Mint
A ceiling from centering alone. Corners, edges and surface can only lower the grade.
Card centering is the balance between opposite printed borders: left/right and top/bottom. A 50/50 ratio means equal borders; a larger difference means the printed design is farther off center.
Centering is one of four grading criteria, alongside corners, edges and surface. Centering Lab checks whether centering alone allows a PSA 10; corners, edges and surface must be checked separately.
PSA publishes approximately 55/45 centering on the front and 75/25 on the back for a PSA 10. Both left/right and top/bottom must meet the limit for their face; this is a centering requirement, not a guarantee of the final grade. Centering standards.
Take the card out of its sleeve, place it on a dark background and photograph it from directly above, avoiding glare. Open the photo in Centering Lab, confirm or correct the card outline, then confirm or adjust the cyan cut lines and lime printed-border lines. This free centering tool and calculator works in your browser like an app, with no installation.
With a worst front axis of 60/40, the Centering Lab model allows PSA 9, BGS 8–8.5 depending on the other axis, CGC 9 and SGC 9 from centering alone. Back limits are wider: 60/40 allows PSA 10, BGS 10 and CGC 10; SGC has no separate numerical back limit in this model. BGS and CGC use interpreted limits and SGC is approximate; these ceilings do not assess corners, edges or surface.
Graders allow different tolerances on the two faces. Measure both for a combined ceiling. Choose the photo’s face when checking the lines, then measure the missing face from its box.
On a full-art front there may be no consistent border to measure. Measure the back, or set the lines if you know the print geometry.
Nowhere. Decoding and measurement happen on your device. No photo uploads, cookies or accounts. We count anonymous visits and actions on the tool and guides, plus aggregate API/MCP calls, without cookies, identifiers or saved IPs; we respect DNT/GPC. Only language, your chosen card size and onboarding tips are remembered locally.
Centering Lab is a free card centering checker that measures front and back centering from a photo and shows the best grade centering allows at PSA, BGS, CGC and SGC. It runs in your browser: photos are never uploaded. We find the card and the borders; you check them in a few seconds; then you get the grades.
Borders, grading and counterfeit checks: practical guides for your cards.
Check yellow, silver and full-art Pokémon borders, measure the blue back and understand PSA 10 centering with worked examples.
Compare front and back centering limits, BGS two-axis rules and Pristine vs Gem Mint, with sources and explicit uncertainty.
Understand 50/50 to 90/10 centering, calculate border ratios and compare ceilings for four graders with millimetre examples.
Take a straight photo, correct perspective and measure printed borders. Phone, ruler and caliper examples with uncertainty.
Learn why reverse tolerances differ, how front and back ceilings combine and when either face becomes the limiting factor.
Screen centering, corners, edges and surface before submitting. Compare real costs and condition without guessing a grade or value.
Measure black, white and borderless designs, choose the right card format and avoid using artwork or sleeves as centering references.
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PSA centering requirements by grade: front and back tolerances, special grades, worked examples and clearly labelled model limits.
BGS centering requirements by grade: front and back tolerances, special grades, worked examples and clearly labelled model limits.
CGC centering requirements by grade: front and back tolerances, special grades, worked examples and clearly labelled model limits.
SGC centering requirements by grade: front and back tolerances, special grades, worked examples and clearly labelled model limits.
See exact 50/50 to 90/10 card centering diagrams, including 55/45 and 60/40 Pokémon examples, with model ceilings for PSA, BGS, CGC and SGC.
Check One Piece card centering, alternate art and reverse frames. Free browser tool with standard format selected; clear limits when borders are missing.
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Check Magic: The Gathering centering with standard format selected. Black and white borders, extended art, borderless and double-faced cards explained.
Check Lorcana centering, Enchanted designs and reverse borders. Standard-format browser tool; practical guidance when a front has no measurable frame.
Measure standard sports and baseball card centering online. Printed frames, Chrome reflections, reverse layouts and size exceptions explained.
