How to understand the diagonal size of your TV

How, depending on the diagonal, to determine the size of the TV

When buying TVs, consumers are guided by a wide range of parameters, wanting to purchase the highest quality and most profitable product. These characteristics include the manufacturer’s brand, functionality, cost and, of course, the screen size. The last parameter is especially important, since the level of comfort when watching a purchased TV directly depends on it.

How To Measure Your TV Screen Size

How to choose the size of your TV?

In view of this, it is advisable to decide on the required dimensions of the device before you go to purchase it. Determining the dimensions of the product, it is recommended to focus on the following factors:

Since TVs can be used anywhere, it is wise to consider the approximate sizes that are suitable for different rooms. All measurements are indicated in inches (“), since the vast majority of home appliance manufacturers are located abroad and use a similar format for measuring length. For a medium sized kitchen, a 19 “or 22” unit is fine. In this case, the TV, as a rule, is placed slightly higher than usual in order to facilitate viewing from various positions.

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In order to achieve optimal viewing conditions in the bedroom, you will need to give preference to models whose diagonal varies in the region of 22-26 ”. For larger rooms, halls and other areas, it is advisable to purchase larger devices, ranging in size from 36 to 65 inches.

These values ​​are guidelines and may differ depending on the actual conditions of use of the selected model.

Convert centimeters to inches

For a more rational use of space, before purchasing a device of the desired size, it is advisable to check how harmoniously it will fit into the existing interior. Since the diagonals of TV screens are measured in inches, it is extremely important to learn how to convert this unit of measurement to centimeters and vice versa.

In fact, such a conversion is performed according to the simplest calculation: 1 inch is equal to 2.54 centimeters, which makes it possible to compose the simplest example. If the TV has a diagonal of 22 inches, then the same distance in centimeters will be 55.88 cm.

TV frame

One of the most important parameters, which many consumers forget about, is the frame that frames the display of the product. Depending on its thickness, the actual dimensions of the device may differ significantly from the anticipated ones. Therefore, it is advisable to familiarize yourself with the approximate dimensions of such products, depending on the chosen diagonal.

As a rule, the real size differs upward along the entire perimeter of the device display, and the difference is about 3-4 cm.However, in some cases, the device can have large dimensions, since older TVs had large frames framing the screen.

The dimensions of TVs popular among consumers (diagonal. Width and Height) will help determine the following table:

  • 24inch. 53.13×29.89cm
  • 32 inches. 71×39.9 cm;
  • 42 inches. 93×52.3 cm;
  • 50 inches. 110.7×62.3 cm;
  • 60 inches. 132×74.7 cm;
  • 65 inches. 143.90×80.94cm.

Thus, using the table and knowing the approximate diagonal of the device display, you can determine its real width and height. This will allow you to check how organically this device fits into the interior even before purchasing it.

What else to pay attention to?

When planning to purchase a TV, it is inappropriate to be guided by the choice solely by the screen diagonal, its width and height, as well as the manufacturer’s brand. In addition to the technical parameters, which seem to be the main ones, there are a number of other characteristics that Honor needs when choosing.

  • Thickness of the TV frame, which can be quite large on older models;
  • The weight of the selected device. This parameter is extremely important in cases where the display is planned to be placed on a wall. The brackets used for mounting must be guaranteed to withstand such a load;
  • Picture quality. Many modern TVs actively use HD and FullHD technologies, which allows you to achieve high image quality.

The most popular solution among consumers is the purchase of a device with a diagonal of 32 inches. After all, it is this size that allows the product to use HD resolution in its work, and is also suitable for the vast majority of residential premises, which makes it versatile.

How to understand the diagonal size of your TV

The diagonal of the TV plays an important role when choosing a TV receiver. The comfort of watching video on the screen depends on the correct choice of the screen size. And it is completely wrong to say that the larger the diagonal of the TV in cm, the better.

How much will it be if you convert 1 inch to cm? As you know, 1 inch equals 2.54 centimeters. Inch (from the Dutch. Duim. thumb) is the name for the unit of measurement of distance in European non-metric systems of measures. Today, an inch is most often understood as an English inch (English inch), equal to 2.54 cm exactly.

In English units, 1 inch = 12 lines = 72 points = 1/12 feet = 1/36 yard.

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After the adoption of the international system of units of measurement SI, inches are considered an obsolete designation, which should be gradually phased out. But, despite this, inches continue to be used in engineering when specifying calibers and form factors, for compatibility with long-established technical solutions. In this case, a double prime (quotation mark “) is used as an inch sign.

In television technology, inches is the diagonal of the screen, which is measured as the distance between opposite corners of the matrix. For example, 37 “means a screen with a diagonal of 37 inches or 37×2.54 = 93.98 cm.

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Simple length converter to convert inches to centimeters and cm to inches:

For example, if you take a 32-inch TV, how much will it be in cm? Using the calculations in the converter, we get that 32 inches in centimeters will be 81.3. Another example, converting 22 inches to cm, we get 55.9 centimeters. And if we take a diagonal of 42 inches, we get 106.7 centimeters.

TV diagonal in cm and inches, conversion table:

Inches Centimeters
22 “ 60 cm
32 “ 82 cm
37 “ 94 cm
40 “ 102 cm
42 “ 107 cm
fifty” 127 cm
60 “ 152 cm
70 “ 178 cm

How to choose the size of the diagonal

Two factors influence the choice of the TV diagonal:

And this picture resolution depends both on the screen you purchased and on the video signal supplied to the TV input.

In the picture you can see how to measure the diagonal of the TV.

You can check this yourself when choosing a TV receiver. If you look closely at a picture with low quality, for example, on-air television, you will notice all the shortcomings of both the image and the video signal processing circuits. And if you step back a little, small errors will become imperceptible.

For example, if you take a 32-inch TV receiver, then for a signal with 625 lines (terrestrial television), the distance to the screen will be about three diagonals 32×3 = 96 inches or 96×2.54 = 243 centimeters, which is approximately 2.5 meters. And if the image resolution corresponds to 720p, then the distance to the screen for normal viewing will already be 1.9 meters or more. If the TV is already Full-HD, then it will be convenient to view the video picture from a distance of 1.3 meters or more. These are the minimum distances to the screen, when viewed from which distortions caused by the structure of the video signal will not be visible in the picture.

For example, if your viewing distance is about 2.2 meters, then when buying an HD Ready TV, you can choose a device with a diagonal of up to 37 inches. If you choose a Full-HD TV, you can increase the diagonal up to 52 inches without sacrificing picture quality. And the new 4K (Ultra HD) models with UHD video conversion will already be over 60 inches at this viewing distance.

For example, one of these TVs: Samsung UE-65NU7400.

understand, diagonal, size

65 ” diagonal, 4K resolution, upscaling module that upscales any video to 4K.

UE-65NU7400

But when viewing from a distance that exceeds the calculated one, there will not be much difference between TVs with different resolutions. Do not forget that the video signal must correspond to the resolution of the device itself for the highest quality reproduction. Therefore, when today almost all TVs are Full HD and even models with Ultra HD resolution (4 times more than Full HD) appear, then the number of pixels in the video signal must be taken into account.

Terrestrial television still has SD resolution (625 lines). But digital television is already spreading more and more, and there the resolution needs to be recognized additionally, but it will be larger than SD. There are many films in Full HD quality, but there is very little content with Ultra HD so far. It is possible to advise for today all calculations to be carried out on the condition that you are watching a video with Full HD quality, and you will get the minimum viewing distance. And if you need to increase the distance, for example, installing a TV in the living room, then you will not see any damage to the picture quality.

An example of a modern (2018) TV with Full HD resolution: LG 43LK5900.

43LK5900

How to choose the size of the diagonal

Two factors influence the choice of the TV diagonal:

  • distance. from which you will watch the television receiver;
  • picture resolution. displayed on the screen.

And this picture resolution depends both on the screen you purchased and on the video signal supplied to the TV input.

In the picture you can see how to measure the diagonal of the TV.

You can check this yourself when choosing a TV receiver. If you look closely at a picture with low quality, for example, on-air television, you will notice all the shortcomings of both the image and the video signal processing circuits. And if you step back a little, small errors will become imperceptible.

For example, if you take a 32-inch TV receiver, then for a signal with 625 lines (terrestrial television), the distance to the screen will be about three diagonals 32×3 = 96 inches or 96×2.54 = 243 centimeters, which is approximately 2.5 meters. And if the image resolution corresponds to 720p, then the distance to the screen for normal viewing will already be 1.9 meters or more. If the TV is already Full-HD, then it will be convenient to view the video picture from a distance of 1.3 meters or more. These are the minimum distances to the screen, when viewed from which distortions caused by the structure of the video signal will not be visible in the picture.

For example, if your viewing distance is about 2.2 meters, then when buying an HD Ready TV, you can choose a device with a diagonal of up to 37 inches. If you choose a Full-HD TV, you can increase the diagonal up to 52 inches without sacrificing picture quality. And the new 4K (Ultra HD) models with UHD video conversion will already be over 60 inches at this viewing distance.

65 ” diagonal, 4K resolution, upscaling module that upscales any video to 4K.

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UE-65NU7400

But when viewing from a distance that exceeds the calculated one, there will not be much difference between TVs with different resolutions. Do not forget that the video signal must correspond to the resolution of the device itself for the highest quality reproduction. Therefore, when today almost all TVs are Full HD and even models with Ultra HD resolution (4 times more than Full HD) appear, then the number of pixels in the video signal must be taken into account.

Terrestrial television still has SD resolution (625 lines). But digital television is already spreading more and more, and there the resolution needs to be recognized additionally, but it will be larger than SD. There are many films in Full HD quality, but there is very little content with Ultra HD so far. It is possible to advise for today all calculations to be carried out on the condition that you are watching a video with Full HD quality, and you will get the minimum viewing distance. And if you need to increase the distance, for example, installing a TV in the living room, then you will not see any damage to the picture quality.

An example of a modern (2018) TV with Full HD resolution: LG 43LK5900.

43LK5900

Diagonal of the TV in cm table

The minimum viewing distance of the TV and the size of the screen diagonal can be related to the following table:

The diagonals of TVs are presented in inches and centimeters, the table makes it possible to choose the third one by two parameters. In the table, choose the horizontal size of the diagonal of the screen, vertically choose the video resolution on the screen (it depends on both the TV and the signal at the input), and at the intersection of these values ​​there will be the desired viewing distance in meters.

A signal with 720p quality can be output by satellite TV programs, games from consoles, copies of BD discs, digital TV.

1080p resolution corresponds to Full-HD TVs and it is better to use such devices if you have such signal sources. Although there are circuit solutions for increasing the signal resolution to 1080p, such circuits do not always work perfectly. Everything needs to be checked on the spot.

Therefore, it is better to decide on the distance to the screen in advance and, accordingly, select the desired resolution and TV diagonal in cm for comfortable viewing.

The diagonal of the TV plays an important role when choosing a TV receiver. The comfort of watching video on the screen depends on the correct choice of the screen size. And it is completely wrong to say that the larger the diagonal of the TV in cm, the better.

How much will it be if you convert 1 inch to cm? As you know, 1 inch equals 2.54 centimeters. Inch (from the Dutch. Duim. thumb) is the name for the unit of measurement of distance in European non-metric systems of measures. Today, an inch is most often understood as an English inch (English inch), equal to 2.54 cm exactly.

  • 1inch = 2.54cm = 25.4mm
  • 1cm = 0.3937inch
  • 1 m = 39.37 inches

In English units, 1 inch = 12 lines = 72 points = 1/12 feet = 1/36 yard.

After the adoption of the international system of units of measurement SI, inches are considered an obsolete designation, which should be gradually phased out. But, despite this, inches continue to be used in engineering when specifying calibers and form factors, for compatibility with long-established technical solutions. In this case, a double prime (quotation mark “) is used as an inch sign.

In television technology, inches is the diagonal of the screen, which is measured as the distance between opposite corners of the matrix. For example, 37 “means a screen with a diagonal of 37 inches or 37×2.54 = 93.98 cm.

Simple length converter to convert inches to centimeters and cm to inches:

For example, if you take a 32-inch TV, how much will it be in cm? Using the calculations in the converter, we get that 32 inches in centimeters will be 81.3. Another example, converting 22 inches to cm, we get 55.9 centimeters. And if we take a diagonal of 42 inches, we get 106.7 centimeters.

TV diagonal in cm and inches, conversion table:

Inches Centimeters
22 “ 60 cm
32 “ 82 cm
37 “ 94 cm
40 “ 102 cm
42 “ 107 cm
fifty” 127 cm
60 “ 152 cm
70 “ 178 cm

Diagonal of the TV in cm table

The minimum viewing distance of the TV and the size of the screen diagonal can be related to the following table:

The diagonals of TVs are presented in inches and centimeters, the table makes it possible to choose the third one by two parameters. In the table, choose the horizontal size of the diagonal of the screen, vertically choose the video resolution on the screen (it depends on both the TV and the signal at the input), and at the intersection of these values ​​there will be the desired viewing distance in meters.

A signal with 720p quality can be output by satellite TV programs, games from consoles, copies of BD discs, digital TV.

1080p resolution corresponds to Full-HD TVs and it is better to use such devices if you have such signal sources. Although there are circuit solutions for increasing the signal resolution to 1080p, such circuits do not always work perfectly. Everything needs to be checked on the spot.

Therefore, it is better to decide on the distance to the screen in advance and, accordingly, select the desired resolution and TV diagonal in cm for comfortable viewing.

To make it easier for users to navigate the other sizes of the screen diagonal, we present a table that relates the screen diagonal to its width and height. In the table, for each value of the diagonal in inches, the value of the same diagonal in centimeters is given, as well as the width and height of the screen in centimeters.

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In the calculations, it was assumed that the screen has an aspect ratio of 16: 9, which is the ratio of most TV sets.

TV diagonal in cm and inches, correspondence table:

Diagonal Height Width
inch cm cm cm
20″ 50.8 24.91 44.28
21 “ 53.34 26.15 46.49
22 “ 55.88 27.4 48.7
23 “ 58.42 28.64 50.92
24 “ 60.96 29.89 53.13
25 “ 63.5 31.13 55.35
26 “ 66.04 32.38 57.56
27 “ 68.58 33.62 59.77
28 “ 71.12 34.87 61.99
29 “ 73.66 36.11 64.2
thirty” 76.2 37.36 66.41
31 “ 78.74 38.6 68.63
32 “ 81.3 39.85 70.84
33 “ 83.82 41.09 73.06
34 “ 86.36 42.34 75.27
35 “ 88.9 43.58 77.48
36 “ 91.44 44.83 79.7
37 “ 93.98 46.07 81.91
38 “ 96.52 47.32 84.12
39 “ 99.06 48.57 86.34
40 “ 101.6 49.81 88.55
41 “ 104.14 51.06 90.77
42 “ 106.68 52.3 92.98
Diagonal Height Width
inch cm cm cm
43 “ 109.22 53.55 95.19
44 “ 111.76 54.79 97.41
45 “ 114.3 56.04 99.62
46 “ 116.84 57.28 101.83
47 “ 119.38 58.53 104.05
48 “ 121.92 59.77 106.26
49 “ 124.46 61.02 108.48
fifty” 127 62.26 110.69
51 “ 129.54 63.51 112.9
52 “ 132.08 64.75 115.12
53 “ 134.62 66 117.33
54 “ 137.16 67.24 119.55
55 “ 139.7 68.49 121.76
56 “ 142.24 69.73 123.97
57 “ 144.78 70.98 126.19
58 “ 147.32 72.23 128.4
59 “ 149.86 73.47 130.61
60 “ 152.4 74.72 132.83
61 “ 154.94 75.96 135.04
62 “ 157.48 77.21 137.26
63 “ 160.02 78.45 139.47
64 “ 162.56 79.7 141.68
65 “ 165.1 80.94 143.9
66 “ 167.64 82.19 146.11
67 “ 170.18 83.43 148.32
Diagonal Height Width
inch cm cm cm
68 “ 172.72 84.68 150.54
69 “ 175.26 85.92 152.75
70 “ 177.8 87.17 154.97
71 “ 180.34 88.41 157.18
72 “ 182.88 89.66 159.39
73 “ 185.42 90.9 161.61
74 “ 187.96 92.15 163.82
75 “ 190.5 93.39 166.04
76 “ 193.04 94.64 168.25
77 “ 195.58 95.89 170.46
78 “ 198.12 97.13 172.68
79 “ 200.66 98.38 174.89
80 “ 203.2 99.62 177.1
81 “ 205.74 100.87 179.32
82 “ 208.28 102.11 181.53
83 “ 210.82 103.36 183.75
84 “ 213.36 104.6 185.96
85 “ 215.9 105.85 188.17
86 “ 218.44 107.09 190.39
87 “ 220.98 108.34 192.6
88 “ 223.52 109.58 194.81
89 “ 226.06 110.83 197.03
90 “ 228.6 112.07 199.24
91 “ 231.14 113.32 201.46
92 “ 233.68 114.56 203.67
Diagonal Height Width
inch cm cm cm
93 “ 236.22 115.81 205.88
94 “ 238.76 117.05 208.1
95 “ 241.3 118.3 210.31
96 “ 243.84 119.55 212.52
97 “ 246.38 120.79 214.74
98 “ 248.92 122.04 216.95
99 “ 251.46 123.28 219.17
one hundred” 254 124.53 221.38
101 “ 256.54 125.77 223.59
102 “ 259.08 127.02 225.81
103 “ 261.62 128.26 228.02
104 “ 264.16 129.51 230.24
105 “ 266.7 130.75 232.45
106 “ 269.24 132 234.66
107 “ 271.78 133.24 236.88
108 “ 274.32 134.49 239.09
109 “ 276.86 135.73 241.3
110 “ 279.4 136.98 243.52
111 “ 281.94 138.22 245.73
112 “ 284.48 139.47 247.95
113 “ 287.02 140.71 250.16
114 “ 289.56 141.96 252.37
115 “ 292.1 143.21 254.59
116 “ 294.64 144.45 256.8
Diagonal Height Width
inch cm cm cm
117 “ 297.18 145.7 259.01
118 “ 299.72 146.94 261.23
119 “ 302.26 148.19 263.44
120 “ 304.8 149.43 265.66
121 “ 307.34 150.68 267.87
122 “ 309.88 151.92 270.08
123 “ 312.42 153.17 272.3
124 “ 314.96 154.41 274.51
125 “ 317.5 155.66 276.73
126 “ 320.04 156.9 278.94
127 “ 322.58 158.15 281.15
128 “ 325.12 159.39 283.37
129 “ 327.66 160.64 285.58
130 “ 330.2 161.88 287.79
131 “ 332.74 163.13 290.01
132 “ 335.28 164.37 292.22
133 “ 337.82 165.62 294.44
134 “ 340.36 166.87 296.65
135 “ 342.9 168.11 298.86
136 “ 345.44 169.36 301.08
137 “ 347.98 170.6 303.29
138 “ 350.52 171.85 305.5
139 “ 353.06 173.09 307.72
140 “ 355.6 174.34 309.93
Diagonal Height Width
inch cm cm cm
141 “ 358.14 175.58 312.15
142 “ 360.68 176.83 314.36
143 “ 363.22 178.07 316.57
144 “ 365.76 179.32 318.79
145 “ 368.3 180.56 321
146 “ 370.84 181.81 323.22
147 “ 373.38 183.05 325.43
148 “ 375.92 184.3 327.64
149 “ 378.46 185.54 329.86
150 “ 381 186.79 332.07

In the following table, the width and height are given specifically for the screen, and not for the entire TV. To find out the size of the TV, you need to add the dimensions of the frame around the screen. In modern television sets, the frame is very thin and can be in the range from a few centimeters to several millimeters.

The English inch or imperial inch (eng. Inch from lat. Uncia. 1/12 part) since 1958 equals exactly 2.54 cm. An inch is usually indicated by two strokes “, in English-speaking countries there may also be a designation in from the word inch. Russian letter designation inch no.

Centimeter (cm, cm;) is a unit of length in various metric systems of measures, equal to 0.01 meters. 1 cm ≈ 0.3937 inches.