77 Inch TV Dimensions: Width, Height & Viewing Distance
77″ TV = 67.1″ × 37.8″
A 77-inch TV has a screen about 67.1 inches wide and 37.8 inches tall (170.5 × 95.9 cm).
Step by step
- For 16:9, width = diagonal × 16 ÷ √(16² + 9²) = 77 × 0.8716 = 67.11 in.
- Height = diagonal × 9 ÷ √337 = 77 × 0.4903 = 37.75 in.
- Add about 1–3 inches each way for the frame and stand.
77-inch TVs suit large living rooms and home theaters; check that it fits wall space and doorways, and that the stand or mount is rated for its weight. A 77″ screen has 196% of the area of a 55″ TV.
Details
- Screen width
- 67.1 in (170.5 cm)
- Screen height
- 37.8 in (95.9 cm)
- Typical size with frame
- about 68 × 39 in
- Screen area
- 2,533 sq in
- 4K viewing distance
- 6.4–9.6 ft
- 1080p viewing distance
- 9.6–16 ft
How it works
TV sizes are the diagonal of the visible screen, not the width. Because almost all TVs are 16:9, width and height follow directly from the diagonal. Screen area grows with the square of the size, so a 75-inch TV has nearly twice the picture of a 55-inch. Manufacturers list exact dimensions with and without the stand — check them before buying furniture or a wall mount.
Nearby values
Related conversions
Frequently asked questions
How wide is a 77 inch TV?
The screen is about 67.1 inches (170 cm) wide; with the frame, roughly 68 inches.
How tall is a 77 inch TV?
About 37.8 inches of screen, plus the frame and stand.
How far should I sit from a 77 inch TV?
About 6.4–9.6 ft for 4K.
Will a 77 inch TV fit on my stand?
The stand should be at least as wide as the TV’s feet; measure the foot spacing in the manual, or choose a stand about 71″ wide.