Screen Distance — How Far to Sit for Eye Health

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Overview

Incorrect viewing distance causes eye strain and headaches. Modern 4K and OLED screens change optimal distances compared to older technology.

Min = screen inches × 2.54 × 1.5 | Max = screen inches × 2.54 × 2.5

Standard formula used by professionals worldwide

55-inch TV → min 210cm, max 349cm | 24-inch monitor → ideal 90-122cm

Accuracy: Results are as accurate as the inputs you provide
Units: Always use consistent units throughout your calculation
Verification: Double-check important calculations before making decisions
Professional advice: For major financial, health, or structural decisions, consult a qualified professional

Yes — 4K renders individual pixels invisible at shorter distances than 1080p.

Every 20 minutes, look at something 20 feet away for 20 seconds.

Evidence is mixed. Reducing screen brightness and using night mode reduces fatigue.

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