How do I calculate card centering?
To calculate card centering, measure the border widths on opposite sides and divide the smaller by the larger, then express as a percentage.
- Measure the left and right (or top and bottom) borders of the card.
- Divide the smaller width by the larger width.
- Multiply by 100 to get the centering percentage.
- Digital tools like Midpoint automate this process from a photo.
