100 Inch TV Dimensions
A 100 inch TV has a screen 87.2 in221.4 cm wide and 49.0 in124.5 cm tall (221.4 cm87.2 in x 124.5 cm49.0 in). The 100 inches is measured diagonally across the glass, corner to corner. The TV itself is always a little bigger than these numbers.
Sized for seating 10.0 ft3.0 m to 13.6 ft4.1 m away, it suits a large living room or home theater. Below you can see it to scale on a wall and check it against your space.
- Width
- 87.2 in 221.4 cm
- Height
- 49.0 in 124.5 cm
- Diagonal
- 100 in 254.0 cm
- Screen area
- 4,273 sq in 27,568 sq cm
How big is a 100 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 4,273 sq in27,568 sq cm, 4% more than a 98 inch screen. The screen is about two and a half doors wide and about three fifths the door's height.
- Diagonal
- 100 in (254.0 cm)
- Width
- 87.2 in221.4 cm · 221.4 cm87.2 in
- Height
- 49.0 in124.5 cm · 124.5 cm49.0 in
- Screen area
- 4,273 sq in27,568 sq cm
- Aspect ratio
- 16:9
- Perimeter
- 272.4 in691.8 cm
- Pixel density at 1080p
- 22 PPI
- Pixel density at 4K
- 44 PPI
- Pixel density at 8K
- 88 PPI
How big is a 100 inch TV with the frame and stand?
The 100 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 100 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 three 100 inch TVs from Samsung and Vizio. Their bodies are 87.7 in222.7 cm to 87.8 in223.0 cm wide, or 0.5 in1.4 cm to 0.6 in1.6 cm more than the screen itself. With under 1 in (2.5 cm) between them, the frame rarely decides whether one of these fits.
Without its stand, the Samsung QN100QN80HFXZA is the thinnest at 2.3 in5.7 cm deep. At the other end, the Vizio VQD100M-0804 is 3.5 in8.9 cm deep.
Weights run from 104.06 lb47.2 kg for the Vizio VQD100M-0804 to 129.85 lb58.9 kg for the Samsung QN100QN80HFXZA. A mount rated for 130 lb59.0 kg or more covers the weight of every model here.
On their stands, they sit 2.2 in5.6 cm to 2.8 in7.1 cm taller, which matters under a shelf or a window. The Samsung UN100M90HFXZA needs the widest TV unit, with feet 70.3 in178.6 cm apart. Vizio does not list a stand width for the VQD100M-0804.
They use two VESA patterns, from 600 x 400 to 800 x 400 mm. The most common is 600 x 400 mm, on two of them, but check your exact model before you buy a mount.
Will a 100 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.
Where should you put a 100 inch TV?
How high to mount it
Center the screen at seated eye height, about 42 in (107 cm) from the floor. For a 100 inch TV that puts the bottom edge at 17.5 in44.4 cm and the top at 66.5 in168.9 cm.
- Bottom edge
- 17.5 in 44.4 cm
- Center
- 42.0 in 106.7 cm
- Top edge
- 66.5 in 168.9 cm
How far to sit from a 100 inch TV
Sit 10.0 ft3.0 m to 13.6 ft4.1 m away. At that distance the screen fills 30 to 40 degrees of your view, the range film and TV engineers recommend.
It feels too close at 5.0 ft1.5 m to 6.0 ft1.8 m, immersive at 8.0 ft2.4 m and ideal at 10.0 ft3.0 m to 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 100 inch TV?
It depends on where you sit. With 20/20 vision you stop seeing pixels beyond a certain distance. On a 100 inch screen that is 13.0 ft4.0 m for 1080p and 6.5 ft2.0 m for 4K.
Sitting closer than 13.0 ft (4.0 m)? 4K will look clearly sharper than 1080p on a 100 inch screen.
How does a 100 inch TV compare with other sizes?
This is the largest size in our chart, and dropping to 98 inches loses 4% and 1.7 in4.4 cm. Area grows with the square of the diagonal, so a few inches feel bigger than they sound. That makes the nearest size a small step away.
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Affiliate linksMore questions about 100 inch TVs
What are the dimensions of a 100 inch TV in cm?
The screen is 221.4 x 124.5 cm, with a diagonal of 254.0 cm. The TV body adds a few centimeters for the frame.
How wide is a 100 inch TV in feet?
The screen is 7 ft 3.2 in wide (7.26 ft). Allow a little more for the frame.
Is a 100 inch TV 100 inches wide?
No. 100 inches is the diagonal, and the screen is 87.2 in wide.
How wide a TV stand do I need for a 100 inch TV?
Choose a stand wider than the TV, which is a little over 87.2 in (221.4 cm) with its frame. If the feet sit near the ends, check the stand width in the model table.
Is 8K worth it on a 100 inch TV?
Only if you sit closer than 6.5 ft (2.0 m). Beyond that, 20/20 vision cannot pick out the pixels of a 4K picture at this size, so 8K looks no sharper.
How much does a 100 inch TV weigh?
The models above weigh 104.06 lb (47.2 kg) to 129.85 lb (58.9 kg) without the stand. The lightest is the Vizio VQD100M-0804, and the heaviest is the Samsung QN100QN80HFXZA.
Which of these 100 inch TVs is the thinnest?
The Samsung QN100QN80HFXZA is the thinnest in the table, at 2.3 in (5.7 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 100 inch TV?
The models above use VESA 600 x 400, 800 x 400 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.