Card Centering Calculator

TCG & Sports Card Grading Tool

Card Centering Calculator is the ultimate tool for measuring your card's centering ratios before grading. Whether you collect Pokémon, One Piece, Lorcana, Yu-Gi-Oh!, Magic, baseball, basketball, football, or other trading and sports cards, the app helps you quickly measure centering, compare grading standards, and decide if your card may be worth submitting.

Scan or upload a card image to calculate real-time centering ratios, such as 55/45 or 60/40, and instantly compare the highest potential centering grades from major grading companies including PSA, BGS, SGC, CGC, TAG, and ACE.

Wondering if your card has centering worthy of a Gem Mint 10? Measure it before you submit.

Questions, comments or suggestions?

Please reach out and we’ll get back to you typically within 24 hours