- Turn your device in Landscape Mode.
- Enter the Horizontal Width (not diagonal) of your device screen in cm or Inch [in]
Sample values: iPhoneSE=10.37cm, GalaxyA52=14.95cm, Fairphone4=14.52cm - Press CALIBRATE and wait a few seconds.
- Important! Verify result after calibrating with a real ruler.
Last Calibration Date/Time/Value/Unit [ Delete ]:
No Calibration found