Card Centering Calculator

Use a clear, flat picture of the full card and try to fill as much of the image as possible with the card. If you use Take Photo, the built-in camera template helps with framing.

Use it when the card looks tilted or trapezoidal. Place the four corner brackets on the card corners, then apply the correction before measuring.

Image View changes how the card picture is displayed to make edges easier to see. Try High Contrast or Grayscale if the border is hard to line up in the original image.

Fit resets the image so it fills the view in a usable way again after you have zoomed or moved around.

Think of these as quick grading-style signals for how centered the card looks. The Front check uses a tighter standard of about 55/45, while the Back check is more forgiving at about 75/25.

• ✅ Looks comfortably within the target range.
• ⚠️ Still passes, but it is close to the cutoff and worth a second look.
• ❌ Falls outside the target range.