TV Size and Viewing Distance Calculator

Your details

Distance from your eyes to the TV screen - measure from your main seating spot.
ft
Higher resolution screens look sharp from closer distances. 4K is the most common standard today.
THX targets a 40-degree field of view for a cinema-like feel. SMPTE targets 30 degrees for everyday comfortable watching.
THX ideal size (40 deg)
100in

Screen diagonal giving you a 40-degree horizontal field of view

Minimum practical size (26 deg)64in
Pixel-limit size for resolution154in
Screen width87.4
Screen height49.1
Pixel density44PPI
THX ideal (40 deg)100
SMPTE comfortable (30 deg)74
Minimum practical (26 deg)64

From this distance, the ideal TV is 74" to 100".

  • For a truly immersive, cinema-like experience THX recommends a 100" screen from this distance.
  • A 74" screen hits the SMPTE 30-degree standard - a comfortable sweet spot for everyday watching.
  • A screen smaller than about 64" would feel too small and distant at this seating position.
  • With 4K content, sit closer than 154" from the screen to see the full sharpness benefit - at your distance a 154" screen is the pixel-limit size.

Next stepIf your room allows, choose the larger end of the range - most people find they quickly adapt and prefer a bigger screen.

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