Is your card's centering good enough to grade?
Centering is the single biggest grade-killer — a flawless-looking front still caps at a 9 if the borders are off. Upload a scan or photo and the tool measures your four borders for you — or measure by hand — and get your centering ratio and the grader it routes to before you pay a fee.
Already know your route? Skip to the grading ROI calculator to run the numbers, or the full pre-grading checklist for all four grades.
Scan your card — it measures for you
Upload a scan or a straight-on photo of the raw card — flat, filling most of the frame, even light, plain background. The tool finds the card's edges and inner frame and measures all four borders. Your image never leaves your browser — everything runs on your device.
Or measure your borders by hand
Use a caliper or ruler. Measure to the tenth of a millimeter — graders round, so 0.0X precision is wasted. Same unit for all four; the 0.5 mm BGS gate assumes millimeters. A scan above fills these in automatically — you can still fine-tune them here.
Centering is graded on the worse of the two axes — one off axis caps the whole card.
Centering is the first of the pre-grade reads in the Black Method — the system that decides what's worth sending in before you spend a cent on fees. Join the waitlist for first access when it opens.
Join the waitlist →An estimate from your own measurements, not a grade guarantee — the grade you actually receive drives everything. Centering thresholds reflect the Black Method's BGS/PSA routing rules.