Screen Distance Checker

Check your screen distance with your webcam or calculate the ideal monitor distance for your screen size.

Use your device camera to estimate your face-to-screen distance in real time.

Ergonomic Setup Tips
  • Monitor should be at arm's length (50-70 cm / 20-28 inches) away
  • Top of the screen should be at or slightly below eye level
  • Tilt the screen back 10-20 degrees to reduce glare
  • Position the screen perpendicular to windows to avoid reflections
  • Use a document holder next to the screen if typing from paper
  • Take a break every 20 minutes — look 20 feet away for 20 seconds
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Why Screen Distance Matters

The distance between your eyes and your screen directly impacts eye comfort, posture, and long-term health. Sitting too close causes eye strain, headaches, and myopia progression. Sitting too far forces you to lean forward, causing neck and back strain.

Recommended Distances

The general guideline is to keep your monitor at arm's length, approximately 50-70 cm (20-28 inches) from your eyes. For larger screens (27 inches and above), you may need to sit slightly farther back. For laptops, a separate keyboard allows you to position the screen at the correct distance.

How the Webcam Distance Check Works

This tool uses your device camera to detect your face and estimate its distance from the screen. It measures the apparent size of your face in the camera frame. Since face width is relatively consistent (about 14-15 cm for adults), a larger face in the frame means you are sitting closer. All processing happens locally in your browser — no images are sent anywhere.

Screen Size and Distance

Larger screens require greater viewing distance. A 24-inch monitor is comfortable at about 60 cm, while a 32-inch monitor is better at 70-80 cm. For phones held in hand, 30-40 cm is typical but further is better for reducing eye strain.

Ergonomic Monitor Setup

Position the top of your screen at or slightly below eye level. This allows your eyes to look slightly downward, which is the natural resting position and reduces eyelid opening (reducing tear evaporation). Tilt the screen back 10-20 degrees to reduce glare. Avoid placing the screen directly in front of a window to prevent backlight glare.

Preventing Posture Problems

Poor screen placement leads to forward head posture, rounded shoulders, and lower back pain. For every inch your head moves forward from neutral, your neck supports an additional 10 pounds of force. Proper screen distance encourages upright posture and reduces musculoskeletal strain.