pepita

Before grading

Measure your Pokémon card’s centering

Enter the eight border measurements. The calculator returns four ratios and identifies the limiting axis without predicting a grade.

Free measurement

Compare all 8 card borders

Front

Use the same unit for all four borders: mm, pixels or grid squares.

Back

Use the same unit for all four borders: mm, pixels or grid squares.

Measure from the printed image to the card edge. The ratio appears after all 8 borders are entered.

Source: PSA grading standards. Approximate tolerances observed 7 August 2026. Calculations stay in your browser.

Method and limitations

For each axis, the first share is the first border divided by the sum of both opposite borders. The tool requires every front axis to be no wider than 55/45 and every back axis no wider than 75/25. Perspective, rounded borders and imprecise measurements can change the result. Corners, edges, surface and authenticity are not assessed.

Frequently asked questions

Does passing mean the card will receive PSA 10?

No. Centering is only one grading criterion and PSA describes its limits as approximate.

Which measurement unit should I use?

Use millimetres, pixels or grid squares, but use the same unit for all four borders on each side.