55 Inch TV Dimensions
A 55 inch TV has a screen 47.9 in121.8 cm wide and 27.0 in68.5 cm tall (121.8 cm47.9 in x 68.5 cm27.0 in). The 55 inches is measured diagonally across the glass, corner to corner. The TV itself is always a little bigger than these numbers.
Sized for seating 5.5 ft1.7 m to 7.5 ft2.3 m away, it suits most living rooms. Below you can see it to scale on a wall and check it against your space.
- Width
- 47.9 in 121.8 cm
- Height
- 27.0 in 68.5 cm
- Diagonal
- 55 in 139.7 cm
- Screen area
- 1,293 sq in 8,339 sq cm
How big is a 55 inch TV?
Here it is drawn to scale on a wall, mounted at the usual height, with a standard 80 inch door beside it. The screen covers 1,293 sq in8,339 sq cm, 21% more than a 50 inch screen. The screen is about one and a half doors wide and about a third the door's height.
- Diagonal
- 55 in (139.7 cm)
- Width
- 47.9 in121.8 cm · 121.8 cm47.9 in
- Height
- 27.0 in68.5 cm · 68.5 cm27.0 in
- Screen area
- 1,293 sq in8,339 sq cm
- Aspect ratio
- 16:9
- Perimeter
- 149.8 in380.5 cm
- Pixel density at 1080p
- 40 PPI
- Pixel density at 4K
- 80 PPI
- Pixel density at 8K
- 160 PPI
How big is a 55 inch TV with the frame and stand?
The 55 inch figure covers the glass only. Frames, stands and depth vary by model, and they decide whether a TV fits your wall. Here are the real measurements of popular 55 inch TVs, from each maker's spec sheet.
Each model name links to its maker's spec sheet. Prices open on Amazon (affiliate links).
What did the real models show?
The table lists nine 55 inch TVs from Samsung and TCL. Their bodies are 48.2 in122.4 cm to 50.8 in129.1 cm wide, or 0.3 in0.6 cm to 2.9 in7.3 cm more than the screen itself. The Samsung QN55S95HAFXZA stands out, 2.1 in5.4 cm wider than the next model.
Without its stand, the Samsung QN55LS03HWFXZA is the thinnest at 1.0 in2.5 cm deep. At the other end, the Samsung UN55M80HAFXZA and Samsung UN55U8000HFXZA are 3.0 in7.7 cm deep.
Weights run from 21.8 lb9.9 kg for the Samsung UN55M80HAFXZA and Samsung UN55U8000HFXZA to 35.94 lb16.3 kg for the Samsung QN55S95HAFXZA. A mount rated for 36 lb16.3 kg or more covers the weight of every model here.
On their stands, they sit 1.2 in3.0 cm to 2.6 in6.5 cm taller, which matters under a shelf or a window. The Samsung QN55QN80HAFXZA needs the widest TV unit, with feet 40.7 in103.5 cm apart. The Samsung QN55S90HAEXZA rests on a base only 14.4 in36.6 cm wide, so it can sit on a narrower TV unit.
They use three VESA patterns, from 200 x 200 to 300 x 300 mm. The most common is 300 x 200 mm, on four of them, but check your exact model before you buy a mount.
Will a 55 inch TV fit?
Enter the width and height of your wall space or TV cabinet opening. We check it against the screen, and the table above shows how much each frame adds.
Using the stand that comes with the TV? Your TV unit must be wider than the stand's feet.
Want a TV that hangs flat like a picture? Samsung makes the Frame in this size. See Samsung Frame TV sizes for its body size and depth.
Where should you put a 55 inch TV?
How high to mount it
Center the screen at seated eye height, about 42 in (107 cm) from the floor. For a 55 inch TV that puts the bottom edge at 28.5 in72.4 cm and the top at 55.5 in140.9 cm.
- Bottom edge
- 28.5 in 72.4 cm
- Center
- 42.0 in 106.7 cm
- Top edge
- 55.5 in 140.9 cm
How far to sit from a 55 inch TV
Sit 5.5 ft1.7 m to 7.5 ft2.3 m away. At that distance the screen fills 30 to 40 degrees of your view, the range film and TV engineers recommend.
It feels immersive at 5.0 ft1.5 m, ideal at 6.0 ft1.8 m, relaxed at 8.0 ft2.4 m to 10.0 ft3.0 m and small in view at 12.0 ft3.7 m. Not sure of your distance? Use the TV size calculator to work backwards from your seat.
Is 4K worth it on a 55 inch TV?
It depends on where you sit. With 20/20 vision you stop seeing pixels beyond a certain distance. On a 55 inch screen that is 7.2 ft2.2 m for 1080p and 3.6 ft1.1 m for 4K.
Sitting closer than 7.2 ft (2.2 m)? 4K will look clearly sharper than 1080p on a 55 inch screen.
How does a 55 inch TV compare with other sizes?
Going up to 65 inches adds 40% more screen area and 8.7 in22.1 cm of width, and dropping to 50 inches loses 17% and 4.4 in11.1 cm. Area grows with the square of the diagonal, so a few inches feel bigger than they sound. That makes the size up a big step, and the size down a clear step.
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Affiliate linksMore questions about 55 inch TVs
What are the dimensions of a 55 inch TV in cm?
The screen is 121.8 x 68.5 cm, with a diagonal of 139.7 cm. The TV body adds a few centimeters for the frame.
How wide is a 55 inch TV in feet?
The screen is 3 ft 11.9 in wide (3.99 ft). Allow a little more for the frame.
Is a 55 inch TV 55 inches wide?
No. 55 inches is the diagonal, and the screen is 47.9 in wide.
How wide a TV stand do I need for a 55 inch TV?
Choose a stand wider than the TV, which is a little over 47.9 in (121.8 cm) with its frame. If the feet sit near the ends, check the stand width in the model table.
Is a 55 inch TV too big for my living room?
Not if you sit 5.5 ft (1.7 m) or more away. Closer than that, the screen fills more than 40 degrees of your view, and you may need to move your head to see the edges.
How much does a 55 inch TV weigh?
The models above weigh 21.8 lb (9.9 kg) to 35.94 lb (16.3 kg) without the stand. The lightest are the Samsung UN55M80HAFXZA and Samsung UN55U8000HFXZA, and the heaviest is the Samsung QN55S95HAFXZA.
Which of these 55 inch TVs is the thinnest?
The Samsung QN55LS03HWFXZA is the thinnest in the table, at 1.0 in (2.5 cm) deep without the stand. Add the mount's own gap to find how far it will stand off the wall.
What size wall mount fits a 55 inch TV?
The models above use VESA 200 x 200, 300 x 200, 300 x 300 mm. Choose a mount rated for your TV's pattern and weight.
How we measure
Screen width = diagonal x a / sqrt(a^2 + b^2) and height = diagonal x b / sqrt(a^2 + b^2) for an a:b screen. Viewing angle = 2 x arctan(half the screen width / distance). Pixel visibility uses 1 arcminute, the limit of 20/20 vision.
Model sizes come from each maker's published spec sheet, linked in the table. Last checked 2026-10-09.