📺 TV Size & Viewing Distance Chart
A TV's advertised size is its diagonal — a "65-inch" TV is actually about 57 inches wide and 32 inches tall. This chart gives the real screen dimensions for 16:9 TVs and the seating distance range where 4K content looks sharp.
Dimensions are for the screen itself; add roughly ½–1 inch per side for bezels and check the stand width separately — stands are often nearly as wide as the screen.
Screen Dimensions by Diagonal (16:9)
| Diagonal | Width | Height | 4K Viewing Distance |
|---|---|---|---|
| 32" | 27.9" | 15.7" | 2.7–4.0 ft |
| 43" | 37.5" | 21.1" | 3.6–5.4 ft |
| 50" | 43.6" | 24.5" | 4.2–6.3 ft |
| 55" | 47.9" | 27.0" | 4.6–6.9 ft |
| 65" | 56.7" | 31.9" | 5.4–8.1 ft |
| 75" | 65.4" | 36.8" | 6.3–9.4 ft |
| 85" | 74.1" | 41.7" | 7.1–10.6 ft |
| 98" | 85.4" | 48.0" | 8.2–12.3 ft |
4K distance = 1–1.5× the diagonal (THX recommends ~1.2×). For 1080p content, sit further back: 1.5–2.5× the diagonal, since pixels become visible sooner.
The Geometry
For a 16:9 screen:
width = diagonal × 0.872
height = diagonal × 0.490
Going up one common size step (55" → 65") adds ~40% more screen area:
screen area scales with the square of the diagonal.