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TV Viewing Distance Calculator

Calculate optimal TV viewing distance scientifically to protect vision and enhance viewing experience

2160p (4K UHD)

Recommended Viewing Distance

Enter TV size to see recommended distance

Common TV Size Reference

32" TV
43" TV
50" TV
55" TV
65" TV
75" TV
85" TV
98" TV

Vision Protection & Viewing Experience Guide

Based on ophthalmology and imaging science standards

Viewing Distance & Vision Protection

  • Maintain recommended distance: Sit within the optimal viewing distance range, avoid too close or too far
  • Take regular breaks: Rest for 10-15 minutes every 30-40 minutes of viewing, look into the distance to relax eye muscles
  • Avoid prolonged viewing: Do not watch continuously for more than 2 hours, give your eyes adequate rest
  • Adjust screen height: Screen center should be slightly below eye level to reduce eye strain

Environment Setup Recommendations

  • Ambient lighting: Maintain appropriate ambient light in the room, avoid watching in complete darkness
  • Screen brightness: Adjust screen brightness according to ambient light, avoid too bright or too dark
  • Reduce glare: Avoid screen glare, adjust TV position or use light-blocking curtains
  • Air quality: Keep indoor air circulating to avoid dry eyes

Healthy Viewing Habits

  • Children viewing time: Children aged 2-5 should not exceed 1 hour per day, ages 6-12 should not exceed 2 hours
  • Viewing posture: Maintain correct sitting posture, avoid lying down or watching at an angle
  • Blink frequency: Maintain normal blink frequency while watching to avoid dry eyes
  • Regular checkups: Recommend annual vision checkups to detect vision problems in time

Professional Advice

Based on ophthalmology research

20-20-20 Rule

Every 20 minutes of viewing, look at something 20 feet (about 6 meters) away for 20 seconds to effectively relieve eye strain

Children Vision Protection

Children's eyes are not fully developed, viewing time should be strictly controlled and maintain a greater viewing distance

Regular Vision Checkups

Recommend annual comprehensive vision checkups to detect and address vision problems in time

Blue Light Protection

Consider using blue light blocking glasses or enabling eye protection mode on TV for prolonged viewing

How it works

Viewing distance calculation is based on human eye viewing angle and screen resolution. Standard viewing angle is 30-40 degrees. Higher resolution allows closer viewing distance. This calculator includes a vision protection coefficient, recommending distances slightly greater than standard values to better protect vision.

Formula: Viewing Distance = Screen Size × Coefficient / Resolution Coefficient
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