TV dimensions
80 inch TV dimensions
Published . Updated . By the DisplayScale team.
A 80 inch TV is 177.1 cm wide and 99.6 cm tall (69.7 in by 39.2 in) as a picture, and about 178.3 cm wide as a whole set.
- Picture width
- 177.1 cm
- 69.7 in
- Picture height
- 99.6 cm
- 39.2 in
- Diagonal
- 203.2 cm
- 80 in
- Whole set width
- ≈ 178.3 cm
- ≈ 70.2 in
The picture is measured on the glass of a 16:9 panel; the whole-set width adds an estimated bezel.
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The 80 inch is where furniture stops being the obvious constraint and starts being the actual one. The set is 178.3 cm wide, and a 180 cm media unit is only a centimetre wider on each side.
Which width do you mean?
- 177.1 cm is the picture, the lit area from the 203.2 cm diagonal and the 16:9 shape. It is the same for every true 80 inch set.
- About 178.3 cm is the set with its bezels, which a wall, a recess or the top of a unit has to exceed.
- About 142.6 cm is how far apart the feet stand, which is the width a unit has to be to take them.
A set sold as an 80 inch can measure a little under that on the diagonal, because some makers name panels by size class. If a spec sheet differs by a centimetre or so, the spec sheet is right for that model.
80 inch TV size in cm, inches and feet
| Measure | Centimetres | Millimetres | Inches | Feet and inches |
|---|---|---|---|---|
| Picture width | 177.1 cm | 1771 mm | 69.7 in | 5 ft 10 in |
| Picture height | 99.6 cm | 996 mm | 39.2 in | 3 ft 3 in |
| Diagonal | 203.2 cm | 2032 mm | 80 in | 6 ft 8 in |
| Body width, approx. | 178.3 cm | 1783 mm | 70.2 in | 5 ft 10 in |
| Body height, approx. | 101.4 cm | 1014 mm | 39.9 in | 3 ft 4 in |
| Height on its feet, approx. | 106.4 cm | 1064 mm | 41.9 in | 3 ft 6 in |
| Foot span, approx. | 142.6 cm | 1426 mm | 56.2 in | 4 ft 8 in |
| Stand depth, approx. | 32 cm | 320 mm | 12.6 in | 1 ft 1 in |
| Picture area | 1.76 m² | 1,764,331 mm² | 2,735 in² | 19.0 ft² |
Picture rows are exact. Rows marked approx. are typical for a set of this size, not one model.
With the stand and without it
On its feet a 80 inch TV stands about 106.4 cm tall: 101.4 cm of set on about 5 cm of foot. The feet ask for a surface about 32 cm deep and 142.6 cm wide. A wall mount takes neither and adds the depth of a bracket.
Drawn to scale
The picture is 99.6 cm tall, close to 60% of the figure’s height, and 177.1 cm across, wider than the figure is tall. On a wall of this size it has room; on a 200 cm wall it has about ten centimetres either side.
Next to the sizes either side
The 77 inch is 4% narrower than the 80 with 7% less picture, and the 83 inch is 4% wider with 8% more. Not every range includes an 80, so check that the model you want comes in it before planning the room around the size.
| Size | Active width | Width | Screen area |
|---|---|---|---|
| 77" | 170.5 cm | −4% | −7% |
| 83" | 183.7 cm | +4% | +8% |
80 inch against 75 inch
Stepping back to a 75 inch saves 11.1 cm of width and 6.2 cm of height. The smaller set carries 6.3% less on the diagonal and 12.1% less picture, which is where a 170 cm unit becomes enough. The 75 inch is set out in full on a page of its own.
Will it fit?
| Space | Size | Fits? | Detail |
|---|---|---|---|
| Narrow alcove | 140 cm × 90 cm | Doesn’t fit | needs 178 cm of wall, you have 140 |
| Small wall | 160 cm × 100 cm | Doesn’t fit | needs 178 cm of wall, you have 160 |
| Standard wall | 200 cm × 120 cm | Fits | 89% of the width, 10.8 cm spare each side |
| Wide wall | 260 cm × 140 cm | Fits | 69% of the width, 40.8 cm spare each side |
| Compact unit | 120 cm wide | Doesn’t fit | its feet span 143 cm, the unit gives you 116 |
| Standard unit | 150 cm wide | Fits on its feet | overhangs the unit by 14 cm each side |
| Wide unit | 180 cm wide | Fits | 99% of the width, 0.8 cm spare each side |
| Low sideboard | 200 cm wide | Fits | 89% of the width, 10.8 cm spare each side |
On a wall the body decides. A 200 cm × 120 cm wall takes it at 89% of the width with 10.8 cm each side, and a 260 cm × 140 cm wall leaves 40.8 cm. A 160 cm × 100 cm wall is 9.2 cm short on each side and an alcove is out.
On furniture the feet decide first and the body second. A 120 cm wide unit is too small. A 150 cm wide unit takes the feet, with the body overhanging by 14.2 cm each side. A 180 cm wide unit holds the whole set with only 0.8 cm to spare each side, which is tight enough that a generous manufacturer figure can overhang, and a 200 cm wide sideboard leaves 10.8 cm. A wall mount avoids the question.
How far to sit
| Used for | Sit | In feet | Field of view |
|---|---|---|---|
| General TV | 2.9 m – 3.6 m | 9 ft 6 in – 11 ft 8 in | 28–34° |
| Sports | 2.7 m – 3.3 m | 8 ft 11 in – 10 ft 10 in | 30–36° |
| Gaming | 2.6 m – 3.3 m | 8 ft 5 in – 10 ft 10 in | 30–38° |
| Movies | 2.4 m – 2.9 m | 8 ft 0 in – 9 ft 6 in | 34–40° |
| Home cinema | 2.1 m – 2.7 m | 7 ft 0 in – 8 ft 11 in | 36–45° |
Sit 2.9 m to 3.6 m away for everyday viewing, where an 80 inch TV fills 28° to 34° of your view, and 2.4 m to 2.9 m for films. At 2.5 m it spans about 39°, past what everyday viewing wants and about right for a film, and at 3 m about 33°. The 8 foot seat guide and the 10 foot seat guide show how the sizes compare from either end.
4K or 8K on an 80 inch?
| Resolution | Pixels | Pixels per inch | Sharp from | Pixels invisible from |
|---|---|---|---|---|
| 1080p | 1920 × 1080 | 28 | 2.4 m | 3.2 m |
| 4K | 3840 × 2160 | 55 | 1.2 m | 1.6 m |
| 8K | 7680 × 4320 | 110 | 0.6 m | 0.8 m |
On a panel of this size the pixels are spread thin: 28 pixels per inch at 1080p, 55 at 4K and 110 at 8K. By the 20/20 convention of 60 pixels per degree, 4K stops showing single pixels from about 1.6 m and 1080p from 3.2 m. The seat for this size is 2.9 m to 3.6 m away, so 4K is comfortably past the limit and 1080p would show its grain. An 8K panel matters only for a seat inside 0.8 m.
The 60 is a convention and not a limit. A 2025 paper in Nature Communications reported a mean of about 94 pixels per degree for fine detail, which puts the 4K limit nearer than the table says, and still inside the seat.
Mounting and handling
The bracket follows the VESA pattern on the back of the set, listed in millimetres on the spec sheet, and it has to be rated for the weight of a set this size. Fix it into studs or masonry, and have a second person to lift. How high to mount a TV answers the height.
Who an 80 inch suits
An 80 inch suits a living room with a wall of 200 cm or more, a unit of 180 cm or wider or a wall mount, and a seat about 2.9 m to 3.6 m back. At 178.3 cm across it fills a 200 cm × 120 cm wall comfortably and a 260 cm wall easily.
It is the wrong size for a 160 cm wall, an alcove or a bedroom with the seat 2 m away. The 77 inch and 83 inch pages cover the sizes either side, and what size TV do I need works from the room.
Common questions
- What are the dimensions of an 80 inch TV in feet?
- The picture is about 5 feet 10 inches wide and 3 feet 3 inches tall, which is 69.7 by 39.2 inches. With its bezels the set is roughly 5 feet 10 inches across, and on its feet it stands about 3 feet 6 inches tall.
- Will an 80 inch TV fit a 180 cm media unit?
- Only just. The body is about 178.3 cm, which leaves about 0.8 cm on each side of a 180 cm top and the feet, about 142.6 cm apart, sit well inside it. A 200 cm sideboard leaves about 10.8 cm each side, and a 150 cm unit takes the feet with the body overhanging by about 14.2 cm each side.
- Is an 80 inch TV much bigger than a 75 inch?
- Modestly: 11.1 cm wider and 6.2 cm taller, which is about 14% more picture. The bigger change is furniture. At about 178 cm the body needs a 180 cm unit at the least, where a 75 inch fits a 170 cm one.
- How far should you sit from an 80 inch TV?
- For everyday viewing, between about 2.9 m and 3.6 m, and for films between 2.4 m and 2.9 m. With the sofa 2.5 m from the screen the picture spans about 39° of your view, so an 80 inch works as a film screen there and not an everyday one.
- Is an 80 inch TV too big for a living room?
- It depends on the seat more than the room. From 3 m it spans about 33°, inside the everyday range, and from 2.5 m about 39°, which is too much. The wall decides the other half: it wants about 178 cm of clear width, and a 200 cm wall leaves about 10.8 cm each side.
How we worked this out
Everything marked approx. assumes a bezel of 0.6 cm at each side, 0.6 cm at the top and 1.2 cm at the bottom, 5 cm of foot height, feet that stand about 142.6 cm apart and 32 cm of foot depth. Real sets vary by a centimetre or two, so the spec sheet of the model you are buying has the last word.
Sources
- Resolution limit of the eye: how many pixels can we see? Nature Communications, 2025, checked 5 October 2026.
- VESA free standards, which include the Flat Display Mounting Interface (FDMI), checked 5 October 2026.
The formulas behind these figures are on the method page. If a figure here looks wrong, tell us and we will check it against the spec sheet and correct the page.