Screen size chart

Every common diagonal as a 16:9 width and height — the fast lookup when you don't need the full calculator.

The short answer

For any 16:9 screen: width = diagonal × 0.8716 and height = diagonal × 0.4903. A 27″ screen is 23.53 × 13.24 in; a 65″ is 56.65 × 31.87 in. The whole chart below is that one multiplication, done for you in inches and centimetres.

Diagonal	Width (in)	Height (in)	Width (cm)	Height (cm)	Area (in²)
5″	4.36	2.45	11.07	6.23	10.68
6.1″	5.32	2.99	13.50	7.60	15.90
6.7″	5.84	3.28	14.83	8.34	19.18
7″	6.10	3.43	15.50	8.72	20.94
10″	8.72	4.90	22.14	12.45	42.73
11″	9.59	5.39	24.35	13.70	51.70
13″	11.33	6.37	28.78	16.19	72.21
14″	12.20	6.86	30.99	17.43	83.75
15.6″	13.60	7.65	34.54	19.43	103.99
17″	14.82	8.33	37.63	21.17	123.49
19″	16.56	9.31	42.06	23.66	154.26
21.5″	18.74	10.54	47.60	26.77	197.52
24″	20.92	11.77	53.13	29.89	246.12
27″	23.53	13.24	59.77	33.62	311.50
32″	27.89	15.69	70.84	39.85	437.55
34″	29.63	16.67	75.27	42.34	493.96
40″	34.86	19.61	88.55	49.81	683.68
43″	37.48	21.08	95.19	53.55	790.08
49″	42.71	24.02	108.48	61.02	1025.95
55″	47.94	26.96	121.76	68.49	1292.58
65″	56.65	31.87	143.90	80.94	1805.34
75″	65.37	36.77	166.04	93.39	2403.56
85″	74.08	41.67	188.17	105.85	3087.24
98″	85.41	48.05	216.95	122.04	4103.79

All rows are 16:9 viewable picture dimensions, computed with the same engine as the homepage calculator. For other shapes — 16:10 laptops, 21:9 ultrawides, 4:3 tablets — use the screen size calculator, which takes any ratio or resolution.

How to use this chart

Furniture and mounts: compare the width column against your cabinet or desk, then add the model's bezel from its spec sheet.
Comparing two sizes: the area column shows why one step up feels bigger than it sounds — 55″ → 65″ is a 40% jump in area, not 18%.
Projectors: the same chart gives image width and height for a projected 16:9 picture of a given diagonal.

Frequently asked questions

How wide is a 75-inch TV?

65.37 in (166.04 cm) wide and 36.77 in (93.40 cm) high, as a 16:9 picture.

Why isn't a 32-inch screen 32 inches wide?

The rating is the diagonal. A 32″ 16:9 picture is 27.89 in wide; the missing inches are “spent” on the diagonal's slope — the same reason a 3-4-5 triangle's longest side is 5, not 7.

Does this chart work for phones?

Only approximately — phones are taller than 16:9 (about 19.5:9), so the 16:9 rows understate their height and overstate their width. The phone screen sizes page computes real models from their own resolutions.