Calibrate using a credit card

1. Place a real card (credit/debit) on the card shown on the screen.
2. Resize the card by dragging the bottom-right corner until it matches.
3. Save: the calibration will remain stored for 365 days.
4. If the image appears distorted, switch browsers or adjust the zoom (100%).

Card width: – px

Scale: – px/mm

Save Recalibrate