TV sizes / 55-inch
55-inch TV: dimensions, viewing distance and VESA
A 55-inch 16:9 screen measures 47.9 x 27 in (122 x 68 cm) — 100% of the picture area of a 55-inch. Sit about 7 ft 5 in away for everyday viewing (SMPTE 30°) or 5 ft 6 in for a cinema-style view (THX 40°). Of the 25 55-inch models listed here, the most common VESA pattern is 300 x 300 mm (8 models).
Screen dimensions
TV size is the screen's diagonal. For a 16:9 panel the width is 0.8716 times the diagonal and the height 0.4903 times, so a 55-inch screen is 47.9 in wide and 27 in tall. The TV itself is larger by its bezel and, on most models, deeper than the panel at the back where the electronics sit; check the maker's "dimensions without stand" before measuring a recess. The step down to 50-inch takes 4.4 in off the width; the step up to 58-inch adds 2.6 in.
Where a 55-inch TV fits
A 55-inch set suits a small living room or a large bedroom, and is the size where most TV lines start to offer their better panels. Its SMPTE distance of 7 ft 5 in is shorter than many living rooms, so check your actual seating distance before deciding it's big enough.
Series available at 55 inches here: LG Gallery TV LX7 Mini LED, LG UHD UA77, Samsung Crystal UHD U8000H, Samsung Micro RGB R85H, Samsung Mini LED M70H, Samsung Mini LED M80H, Samsung Neo QLED QN70H, Samsung Neo QLED QN80H, Samsung OLED S85H, Samsung OLED S90H, Samsung OLED S95H, Samsung The Frame LS03HE, Samsung The Frame Pro LS03HW, Samsung The Terrace LST7D (Partial Sun), Sony BRAVIA 2 II, Sony BRAVIA 3 II, Sony BRAVIA 5, Sony BRAVIA 6 OLED, Sony BRAVIA 7 II, Sony BRAVIA 8, Sony BRAVIA 8 II, Sony BRAVIA XR A95L, Sony BRAVIA XR8B, TCL QM6K, TCL QM7K.
How far to sit from a 55-inch TV
| Basis | Distance | In feet | What it means |
|---|---|---|---|
| SMPTE 30° (mixed viewing) | 89 in | 7.5 ft | Screen fills a 30° view — the widely quoted everyday figure. |
| THX 40° (cinema) | 66 in | 5.5 ft | A wider 40° view, THX's figure for film. |
| 4K (3840 x 2160) detail limit | 43 in | 3.6 ft | Farthest seat where 20/20 eyes still resolve single 4K pixels. |
| 1080p (1920 x 1080) detail limit | 86 in | 7.2 ft | Farthest seat where 20/20 eyes still resolve single 1080P pixels. |
| 8K (7680 x 4320) detail limit | 21 in | 1.8 ft | Farthest seat where 20/20 eyes still resolve single 8K pixels. |
Read the last rows the right way round. Closer than the 1080p limit (7 ft 2 in), a 1080p picture shows visible pixel structure and 4K looks sharper; farther away, 1080p already reaches the limit of 20/20 vision. Notice where the two standard seats fall: the SMPTE seat (7 ft 5 in) is just beyond the 1080p limit, so at the everyday distance 4K is barely distinguishable from 1080p, while the THX seat (5 ft 6 in) is well inside it, so for a cinema-style view 4K clearly helps. That relationship holds at every size because all three distances scale with the diagonal. 4K's own pixels are only resolvable within 3 ft 7 in, and 8K's within 1 ft 9 in — which is why 8K adds nothing you can see from a sofa.
VESA patterns on 55-inch TVs
5 different patterns appear at this size: 300 x 300 on 8 (35%), 200 x 200 on 7 (30%), 300 x 200 on 6 (26%), 400 x 300 on 1 (4%), 200 x 300 on 1 (4%). Size alone does not tell you the pattern — look up the model. Weights without stand run from 21.8 lb (Samsung UN55U8000HFXZA) to 64.6 lb (Samsung QN55LST7DAFXZA), median 31.9 lb — a spread wide enough that a mount rated for one 55-inch TV may not hold another.
| Model | Series | VESA (mm) | Weight |
|---|---|---|---|
| LG 55LX7BPUA | Gallery TV LX7 Mini LED | 400 x 300 mm | 41 lb |
| LG 55UA7700PUB | UHD UA77 | 200 x 300 mm | 22.7 lb |
| Samsung UN55U8000HFXZA | Crystal UHD U8000H | 200 x 200 mm | 21.8 lb |
| Samsung MRN55R85HAFXZA | Micro RGB R85H | 300 x 200 mm | 32.2 lb |
| Samsung UN55M70HAFXZA | Mini LED M70H | 200 x 200 mm | 22.1 lb |
| Samsung UN55M80HAFXZA | Mini LED M80H | 200 x 200 mm | 21.8 lb |
| Samsung QN55QN70HAFXZA | Neo QLED QN70H | 200 x 200 mm | 30.4 lb |
| Samsung QN55QN80HAFXZA | Neo QLED QN80H | 300 x 200 mm | 29.1 lb |
| Samsung QN55S85HAEXZA | OLED S85H | 300 x 200 mm | 28.7 lb |
| Samsung QN55S90HAEXZA | OLED S90H | 300 x 200 mm | 32.2 lb |
| Samsung QN55S95HAFXZA | OLED S95H | 300 x 200 mm | 35.9 lb |
| Samsung QN55LS03HEFXZA | The Frame LS03HE | 200 x 200 mm | 31.5 lb |
| Samsung QN55LS03HWFXZA | The Frame Pro LS03HW | 200 x 200 mm | 33.1 lb |
| Samsung QN55LST7DAFXZA | The Terrace LST7D (Partial Sun) | 200 x 200 mm | 64.6 lb |
| Sony K55S20M2 | BRAVIA 2 II | 300 x 300 mm | 29.1 lb |
| Sony K55XR30M2 | BRAVIA 3 II | 300 x 300 mm | 29.4 lb |
| Sony K55XR50 | BRAVIA 5 | 300 x 300 mm | 39 lb |
| Sony K55A60 | BRAVIA 6 OLED | 300 x 200 mm | 30.2 lb |
| Sony K55XR70M2 | BRAVIA 7 II | 300 x 300 mm | 40.6 lb |
| Sony K55XR80 | BRAVIA 8 | Not published | 37.7 lb |
| Sony K55XR80M2 | BRAVIA 8 II | 300 x 300 mm | 37.9 lb |
| Sony XR55A95L | BRAVIA XR A95L | Not published | 38.8 lb |
| Sony K55XR8B | BRAVIA XR8B | 300 x 300 mm | 37.7 lb |
| TCL 55QM6K | QM6K | 300 x 300 mm | — |
| TCL 55QM7K | QM7K | 300 x 300 mm | 29.3 lb |
Brands with a 55-inch model listed: LG, Samsung, Sony, TCL. 2 models list no pattern; see their pages.
Dimensions and distances: geometry for a 16:9 screen with the viewing angles and acuity limit cited on the methodology page (Wikipedia, Optimum HDTV viewing distance (SMPTE section, citing a Fujitsu white paper and trade publications)). Patterns and weights: each model's manufacturer page, checked 2026-10-20.