Screen Distance Measurement Tool
Measure your actual eye-to-screen distance in seconds
Help your eye doctor prescribe the perfect computer glasses. This tool measures your real working distance using face detection—no video is uploaded, everything runs locally in your browser.
Note: Best used on a desktop or laptop at your computer. Phone users can use manual mode to enter their estimated distance.
Accurate Measurement
Uses advanced face detection to measure your actual distance over 7 seconds for reliable results.
100% Private
All processing happens on your device. No video is uploaded or stored anywhere.
Quick & Easy
Simple calibration process. Get your results in under a minute.
For Eye Doctors
Share your results with your eye doctor to get lenses optimized for your working distance.
For your eye doctor: For Eye Doctors: This tool helps collect patient screen distance measurements before office visits, reducing prescription errors and unnecessary callbacks. Patients who sit far from their screen often receive incorrect prescriptions when distance isn't measured—this tool helps prevent that.
Not medical advice. Estimate only.