📺 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.
Screen Dimensions by Diagonal (16:9)
| Diagonal | Width | Height | Width × Height (cm) | 4K Viewing Distance |
|---|---|---|---|---|
| 32" | 27.9" | 15.7" | 70.9 × 39.9 cm | 2.7–4.0 ft |
| 43" | 37.5" | 21.1" | 95.2 × 53.6 cm | 3.6–5.4 ft |
| 50" | 43.6" | 24.5" | 110.7 × 62.3 cm | 4.2–6.3 ft |
| 55" | 47.9" | 27.0" | 121.7 × 68.6 cm | 4.6–6.9 ft |
| 65" | 56.7" | 31.9" | 143.9 × 81.0 cm | 5.4–8.1 ft |
| 75" | 65.4" | 36.8" | 166.1 × 93.5 cm | 6.3–9.4 ft |
| 85" | 74.1" | 41.7" | 188.2 × 105.9 cm | 7.1–10.6 ft |
| 98" | 85.4" | 48.0" | 217.0 × 122.1 cm | 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
Frequently Asked Questions
How wide is a 65-inch TV?
A 65-inch 16:9 TV is about 56.7 inches (144 cm) wide and 31.9 inches (81 cm) tall — the 65 inches is the diagonal, not the width. Add roughly half an inch per side for the bezel.
How do you measure a TV screen size?
Measure the screen diagonally, from one corner of the visible picture to the opposite corner, excluding the bezel and frame. That diagonal is the size manufacturers advertise.
Are LG, Samsung, and Sony TV sizes the same?
Yes. TV sizing is standardized on the diagonal, so a 55-inch screen is about 47.9 inches wide on any brand. Only the bezel thickness and stand width differ slightly between LG, Samsung, Sony, and other makers.
What size TV should I get for my room?
For 4K, sit about 1 to 1.5 times the diagonal away from the screen. A 65-inch TV suits a seating distance of roughly 5.4–8.1 ft; pick the largest size whose distance range matches where you actually sit.
How wide is a 55-inch or 75-inch TV?
A 55-inch TV is about 47.9 inches (122 cm) wide; a 75-inch is about 65.4 inches (166 cm) wide. Both are 16:9 screens measured corner to corner.