50 inch TV dimensions

The 50 inch is the last size that a compact TV unit will take, and that is what decides most of the buying: 111.9 cm of set against the 120 cm top of a small unit.

50 inch TV dimensions: which width do you mean?

A 50 inch has three widths. The picture is 110.7 cm across, which the 127 cm diagonal and the 16:9 shape fix for every true 50 inch set. The set with its bezels is about 111.9 cm, and that is the figure for a unit, a recess or an alcove. The feet stand about 72.7 cm apart, so a stand must be at least that wide to carry the set, and the body then overhangs it at both ends.

Where a set is sold by size class it can measure a few millimetres under 50 inches on the diagonal. If the spec sheet and this page differ by a centimetre, trust the spec sheet.

50 inch TV size in cm, inches and feet

With the stand and without it

Standing on its feet, a 50 inch TV is about 69.1 cm tall: 64.1 cm of set on about 5 cm of foot, which is 27.2 in in all. The feet ask for a shelf about 25 cm deep. Wall mounted, the feet go and a bracket takes their place, adding a depth that differs by model.

Drawn to scale

200 cm110.7 cm44.1 cm44.1 cm

The picture is 62.3 cm tall, a little over a third of the figure’s height, and 110.7 cm across. Next to a standing adult it reads as a modest screen, which is the point of the size: it fills a corner and not a wall.

Next to the sizes either side

200 cm110.7 cm44.1 cm44.1 cm

The 48 inch is 4% narrower than the 50 and has 8% less picture. The 55 inch is 10% wider and has 21% more.

The step down to the 48 inch buys almost nothing, 4% of width, so if a 50 fits, take it. The step up to the 55 is the one people actually weigh, and it is the point at which a compact unit stops working.

50 inch against 55 inch

Compare any two screens

For five inches of screen, a 55 inch gains 11.1 cm of width, 6.2 cm of height and 21% more picture, with 10% more on the diagonal. The picture figures look small beside the whole-set ones: the 55 inch body is about 123 cm and a 120 cm unit is narrower than that, so the extra size is paid for in furniture as well as money. The 55 inch page has its own tables.

Will it fit?

On a 120 cm wide unit the set uses 93% of the top, with 4.1 cm showing on each side. That looks intentional in a way that a set overhanging by a centimetre does not. A 140 cm × 90 cm alcove takes it with 14.1 cm each side at 80% of the width, and on a standard 200 cm × 120 cm wall it uses a comfortable 56%.

Measure the top of the unit and not its label, because a centimetre either way changes how much of the top shows on each side.

How far to sit

Comfortable viewing distance for a 50 inch television, by what it is used for

Used for	Sit	In feet	Field of view
General TV	1.8 m – 2.2 m	5 ft 11 in – 7 ft 3 in	28–34°
Sports	1.7 m – 2.1 m	5 ft 7 in – 6 ft 9 in	30–36°
Gaming	1.6 m – 2.1 m	5 ft 3 in – 6 ft 9 in	30–38°
Movies	1.5 m – 1.8 m	5 ft 0 in – 5 ft 11 in	34–40°
Home cinema	1.3 m – 1.7 m	4 ft 5 in – 5 ft 7 in	36–45°

The calculator’s everyday range for a 50 inch TV is 1.8 m to 2.2 m, where the picture takes up 28° to 34° of your view. For films it is 1.5 m to 1.8 m and 34° to 40°. SMPTE and THX are usually quoted at 30 and 40 degrees, and the bands here run around both.

That is a small living room or a large bedroom. From a sofa 2.5 m back the picture looks smaller than the range above wants, and a 58 inch or a 60 inch fills the share of your view that the table is looking for. The viewing distance chart lists the range for every size.

Ours sat in front of a racing seat

For a while a 50 inch 4K was the screen on our sim-racing rig, 1.5 m from the seat. From there it spans 40.5° across: a little past the 30 to 38° the calculator scores as immersive for gaming, and inside the 42° it treats as the comfortable limit. At that distance 4K is more than enough, at 90.8 pixels per degree. The rig has since moved to the garage.

Is 4K worth it on a 50 inch?

A 4K panel at 50 inches packs 88 pixels per inch. By the usual 20/20 convention of 60 pixels per degree, single pixels stop showing from about 1 m; for a 1080p panel of the same size the limit is 2 m. A seat inside 1.8 m to 2.2 m is right at the limit for 1080p and well past it for 4K, so the real case for 4K at this size is finer text and cleaner edges and not a bigger picture.

The racing-seat figure above sits just under a finding from a 2025 paper in Nature Communications, which measured a mean of about 94 pixels per degree for fine black and white detail. So even at 1.5 m a sharp-eyed person is near the edge of what the panel shows, and there is little to gain from more pixels at a 50 inch.

Fixing it to the wall

A bracket fits the pattern of threaded holes on the back of the set. The pattern follows the VESA mounting standard, is quoted in millimetres and differs from model to model, so take it from the manual or spec sheet and not from the size. The bracket has to be rated for the weight of the set and fixed into studs or masonry, never into plasterboard alone. The guide to mounting height answers how high.

Who a 50 inch suits

A 50 inch suits a room that already has a compact unit, a shallow shelf or an alcove, and a seat about two metres back. At 111.9 cm across it uses 80% of a 140 cm × 90 cm alcove, and it is the biggest size that lets a 120 cm unit keep a margin on each side.

If the seat is further back, or the wall is open, the next size up is a better use of the room. What size TV do I need takes it from the room and the seat.