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TAG centering
calculator
Upload a photo and see your card's centering measurement before you submit to TAG — free, instant, no signup.
Drag and drop or click above to upload
Supports JPG, PNG, GIF up to 15MB
Why centering matters for TAG grading
TAG grades cards using computer-vision measurement rather than a human eyeballing the borders, and it reports centering as a precise percentage rather than a rough visual estimate. That makes it worth measuring your own centering beforehand with the same kind of precision, so you know roughly where a card will land before it's scanned.