Enter four border measurements and get centering ratios and projected grades for PSA, CGC, BGS and SGC. Free, instant, and nothing leaves your browser.
Drag the artwork, use the arrow keys, or move the sliders.
This is how graders see centering: the share of border on each side. Watch the grades change as the art drifts.
No account, no photo upload. Measure the card in your hand and the numbers do the rest.
Use calipers or a ruler to measure the top, bottom, left and right borders on the front and back.
Type them in millimetres, inches or pixels. The card preview shifts as you go so you can sanity-check it.
See left/right and top/bottom ratios and the best centering grade each service would allow.
Each service sets its own centering tolerance for a 10. Pick a grader to see its full ladder.
Everything you need to pick the right grader before you pay the fee.
The card visual moves with every number you enter.
Left/right and top/bottom, written the way graders write them.
See where your centering lands at each grader, not just pass or fail.
Back tolerances are applied separately, including PSA's lenient 75/25.
Switch between millimetres, inches and pixels from a scan.
Runs in your browser. Nothing is stored or sent anywhere.
It takes under a minute per card.