1. Make sure your screen size is set to 100% magnification to ensure correct measuring results. Hold a physical credit card against your screen and over the virtual credit card area.
  2. Use your mouse to adjust the vertical and horizontal sliding bars until the image of the credit card on your screen is the same size as your actual credit card you are holding
  3. Your screen size will appear at the bottom of your screen
  4. Need Additional Help?

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