Your monitor size is:

Your screen resolution is: x

To calibrate the correct display size for your monitor, place a physical card against the image of the card below and increase or decrease its size until it matches the size of the physical card.

Increase card size Decrease card size

STANDARD CREDIT CARD

1234 5678 9012 3456

The screen resolution may need to be changed on the computer in order for the image to match the size of the physical card.

For information on changing monitor resolution, follow the links below depending on the Operating System:

Windows Users: Microsoft instructions for changing resolution
Mac Users: Apple instructions for changing resolution