Dimensions of TVs and monitors in centimeters and inches: comparison table and calculator

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One of the TV parameters is the screen diagonal. The manufacturer indicates the size in centimeters and inches. Not every buyer understands what this parameter displays and what screen size is most suitable for a particular room. To make the right choice, you need to understand the concepts of “TV diagonal”, learn how to convert centimeters to inches and determine the distance from the screen to the viewer for comfortable viewing.

How to convert inches to centimeters

The inch is a non-metric system, while centimeters are a metric system and are used to measure lengths. Inches are considered an outdated system, but they are still used in technology. A double stroke is used to indicate an inch.

To make choosing a TV easier, just convert inches to centimeters. One inch is equal to 2.54 centimeters. Accordingly, a 10-inch screen will be equal to 25.4 centimeters.

To make the translation easier, you can use a table or an online calculator.

What is the difference between an inch and a centimeter

According to Wikipedia, an inch is a non-metric unit of length or distance. This unit of measurement is now called the English inch, commonly used in the United States. Usually

1 inch is equal to 2.54 cm.

On the other hand, the centimeter is a unit of measurement that predominates in various metric measurement systems. Currently, 1 centimeter is equal to 0.01 meters.

In fact, any first grader can convert the TV diagonal from inches to centimeters and back. All you have to do is multiply the number of inches by 2.5 to get centimeters. If you want to convert centimeters to inches, simply divide the number by 2.54.

A special summary table has been designed to make it easier to see the ratio of screen diagonal, screen width and screen height. Calculations are based on 16:9 format, which is the generally accepted standard.

How to find out the size of your TV yourself

Manufacturers indicate the dimensions of the TV and screen in the name of the equipment, but each company has its own sequence. So, for Samsung, the diagonal is reflected by the first number after the letters, for example, the Samsung UE40F8000 model has a diagonal of 40 inches.

LG has a different marking, for example, the 32LM660T model has a diagonal of 32 inches, that is, the size is indicated in the first place. The Sony KDL-42W653A model has a diagonal of 42 inches, that is, like Samsung, the size is indicated by the first digit. Similarly, the screen size in inches is displayed in the names of models from other manufacturers. If difficulties arise, you can use a search engine to find a model on the Internet and understand its size based on its characteristics.

If the model name is not known to the owner, you can find out the size yourself. To do this, use a tape measure to measure the distance from the lower left corner to the upper right corner.

Important: it is the screen size that is measured, without taking into account the frame. Otherwise the size will be incorrect.

Dimensions of TV diagonals in inches and centimeters

To easily convert inches to centimeters, you can use a ready-made table.

TV diagonal in cm and inches, correspondence table

The table shows calculations for a screen with an aspect ratio of 16:9. If you want to know other values, use the calculator.

Table of TV sizes by width and height

Another important screen parameter is width and height. Moreover, even models with the same diagonal may have different parameters. This is explained by the fact that TV models have different aspect ratios. Old TVs had a 3x4 aspect ratio. Today this option is no longer used. Modern standard 16x9 and 21x9. The second option has a larger width; such screens are low, but wider. To determine the width, you can also use a table taking into account the aspect ratio.

Diagonals from various manufacturers

Each manufacturer determines which diagonal models to produce. The buyer can only choose from the presented range:

• Samsung produces models with diagonals from 22 to 98 inches.
• LG from 22 to 87.6.
• Philips from 19 to 70.
• Hyundai from 22 to 65.
• BBK from 19 to 75.
• Sony from 24 to 97.5.
• Panasonic from 23.6 to 65.

Other manufacturers also provide a wide range of diagonal models for both small rooms and large spaces. To determine this size in centimeters, as well as find out the width and height, just refer to the tables.

Dimensions of TV with frame and stand

Sometimes when choosing a model, the size of the TV is indicated, not the screen. This means that the diagonal was measured from the extreme points of the frame. Accordingly, the screen will be smaller by the width of the frame. Therefore, if the specifications indicate the dimensions of the TV (height/width/depth), it should be taken into account that these are the dimensions of the equipment, and not the size of the screen. The last parameter is indicated on a separate line and is measured between opposite corners of the screen without a frame.

The size of the equipment is also affected by the presence or absence of a stand or canopy. Thus, the depth of the TV includes both the thickness of the equipment and the thickness of the mounting. The same applies to the stand legs.

Viewing distance

When choosing a TV, what matters is how far people will sit from the screen. Viewing comfort and the degree of eye strain depend on this. The minimum is one meter, but this is for a screen with a diagonal of 37-40 centimeters. The optimal distance is at which it is comfortable to watch TV and the picture is not distorted. This indicator depends on the type of screen, diagonal and other parameters.

The screen type is important:

• 4K is a screen with a resolution of 4 thousand pixels. Accordingly, you need to sit at a distance of 2.7-3 meters from such a screen. There is also no point in placing the TV too far away, since the human eye will then not be able to see all the subtleties of the picture with such a resolution. That is, high resolution will no longer make sense.
• It is better to sit further away from the cathode ray tube TV. What matters here is the size of the diagonal. The distance to the eyes from the screen should be five times greater than the diagonal (in centimeters).
• When using plasma TVs and LED screens, the distance is also equal to the diagonal multiplied by five.
• When watching 3D TV, the distance depends on the type of screen. For example, from a Full HD TV with a diagonal of 40 inches, 1.6 meters will be enough, and for a UHD model of the same diagonal, 0.8 m will be enough.

There are also general recommendations. So, to watch programs on a 32-inch screen, it should be installed at a distance of 1.6-2.4 meters from the eyes. For a 40-inch screen, the distance will already be 2-3 meters. You should move 2.4-3.7 meters away from a 48-inch screen. But from a 50-inch TV you will have to sit at a distance of 2.5-3.8 meters.

The next parameter is the resolution or the number of points. The more of them, the farther you can watch TV without losing quality. Accordingly, with a low resolution, TV can be watched from a closer distance. Approximate parameters are shown in the table.

The most important features of 50-inch TVs

Everyone dreams of a TV that is perfect, meets all expectations and at the same time is in an affordable price range. What characteristics should a good 50-inch TV have? Opinions vary and are very individual, but there are several parameters and functions that are worth paying special attention to.

The most important characteristic of these devices is the type of display. You can choose from a 50-inch QLED, LED/LCD or OLED TV. Each of them has its own advantages and disadvantages. The most expensive option is the QLED type, which at the same time offers the highest quality and truly bright images. Another issue is resolution. The 50-inch Full HD TV is very popular and the Ultra HD TV provides the best picture. It's rich in detail, making it ideal for watching 4K movies and games on your console. On the other hand, when watching standard TV, Full HD resolution will work very well.

It is also worth paying attention to the number of ports, connectors and inputs that the TV is equipped with. HDMI and USB inputs allow you to connect additional devices such as a game console, player or external drive. The 50-inch Wi-Fi TV provides wireless Internet connectivity. The device must also have an antenna input to access terrestrial television. If you want to choose a 50-inch wall-mounted TV, check whether it is VESA compliant, which means the equipment can be hung on the wall using the appropriate bracket. Other considerations when choosing a TV include the screen's refresh rate and its shape, such as curved or flat screen.

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Choosing between size and ease of use

Screens with large diagonals are in high demand today. Buyers in stores pay attention to image quality and vivid picture quality, but when they install a TV at home, they are often disappointed. This is explained by viewing conditions.

If you install a large TV in a small room and view it at close range, the eye simply will not catch all the pixels, that is, the picture will be incomplete. In addition, it is an increased strain on the eyes. Therefore, you should not buy large models for small rooms. For convenience, you can use a universal formula: the screen diagonal, reduced by five, will be equal to the distance to the TV. There is no point in purchasing a large screen.

What to look for when choosing a TV diagonal

When choosing a screen size, there are several factors to consider. First of all, this is the size of the room. To do this, just look at the table to see which diagonal models will suit the length of the room or the distance to the place where the viewer is sitting. Accordingly, if the distance from the wall to the sofa is no more than two meters, there is no point in buying a TV with a diagonal of more than 40 inches with an average resolution.

Based on this, we can conclude that permission is also important. The higher it is, the closer you can sit to the screen. Accordingly, you can buy a large TV for the bedroom, but with high resolution. This leaves only three main options to choose from:

• Room size.
• Screen resolution.
• Screen type.

In addition to the above, such indicators as screen contrast, data update frequency, monitor color, and input delay time are important. Accordingly, if you plan to connect a game console, then you should take models with a high refresh rate, but more affordable models with a lower resolution are suitable for the kitchen.

If you make a choice, relying only on your own taste, without taking into account the numbers, you may be disappointed in the resulting picture.

Units of length: inch and centimeter

An inch (abbreviated ″) is a unit of length in the British Imperial System, the official system of weights and measures adopted in the British Empire.

In almost all countries where the imperial system of measures was in use, it was replaced by the metric system. However, imperial units are still widely used in Great Britain, Canada, some other countries that are members of the British Commonwealth, and also in the United States.

1 inch is exactly equal to 25.4 mm or 2.54 cm.

A centimeter (cm) is a unit of length in the metric system of measures, which in its modern version is called the International System of Units (SI).

The basic unit of length in the SI system is the meter. The prefix "centi" means "one hundredth". 1 centimeter is equal to 0.01 meters.

1 centimeter is approximately equal to 0.3937 inches.

Converting inches to centimeters (cm) is a simple task. You just need to remember that 1 inch is 2.54 cm

First, let's talk about how these inches are designated. In English it is inch. If there are a lot of them (inches), they write inches. In the abbreviated version, only the first two letters in are used. This appears in the text. There is also a graphic image - these are two lines at the top next to the number. For example: 3″, 5.2″. It reads 3 inches, five and two inches.

Which TV diagonal to choose?

Televisions are installed both in the halls and in secondary rooms. In each case, you need to take into account some nuances of choice to make watching programs comfortable.

To the bedroom

In the bedroom, TV is most often viewed in a lying position. The calculation in this case is standard: diagonal multiplied by five. The average bedroom area is 18 square meters. m. For such an area, a model with a screen of up to 40 inches is sufficient, but in practice, buyers often prefer models with a diagonal of up to 30 inches. This will make watching programs as comfortable as possible even in the dark without additional lighting.

To the living room

In this room, TVs with the largest diagonal are usually installed. This will allow you to use them as a home theater. The size of the screen also depends on the area of ​​the room and the distance to the viewer. So, if you plan to install the TV at a distance of 2.5 meters from the viewer, then the diagonal can be taken up to 60 inches. With a greater distance, the diagonal increases.

To the nursery

A children's room also rarely has a large area. In addition, the TV is used for a different purpose. More often, a music center and game consoles are connected. Accordingly, it is enough to buy a model with a small screen, but good resolution and high technical parameters. This will allow you to be close to the screen without harm to your health.

To the kitchen

Special TVs are produced for the kitchen, designed to withstand the aggressive effects of temperature, humidity and dirt, but they cost an order of magnitude more than conventional models. If you can’t buy such a model, you can take a regular TV. The optimal screen size would be 16-19 inches. If the kitchen area is more than 12 square meters, then you can purchase a model with a diagonal of up to 24 inches. The equipment is installed on the wall using a bracket.

To the office

In the office, as well as in the kitchen, the TV is often used as a background for watching programs and news, so you can limit yourself to a small model with medium resolution. If it is important for work to track news or watch programs, then it is recommended to choose a model with a high resolution but a small screen. This way it can be installed close to the viewer without reducing the level of comfort.

Thus, in order to choose the right model, it is enough to know its diagonal and room parameters, and make a choice taking into account the type of screen. At the same time, do not forget that the diagonal is measured in both inches and centimeters, and it differs from the dimensions of the equipment.

50-inch Sony TVs

Below is a review of 50-inch Sony TVs. These models are on the bestseller lists of the largest electronics stores in Poland. Thus, these are the most popular Sony TVs with this screen size. For each of them, we have selected the most important information about technical specifications, features and prices in individual stores. 50-inch TVs are listed in order from cheapest to most expensive.

Sony KD-49X7055 Smart TV 4K TV

• Screen: 49 inches 4K Ultra HD
• Matrix: LCD, 50 Hz
• Sound: 20 W , 2.0 channels, Clear Audio +
• Connectors: 3x HDMI (2.0 standard), 3x USB, CI+
• Tuner: DVB-T/T2, DVB-C, DVB-S/S2
• Energy class: A.
• Functions: Wi-Fi, Smart TV, connection to smartphone, recording to USB hard drive
• Dimensions without stand (W x H x D): 110.1 x 64.5 x 5.7 cm
• Dimensions with stand (W x H x D): 110.1 x 70.2 x 28.6 cm

Sony KD-49X7055 is one of the most popular TVs in the 50-inch TV category. This model is exactly 48.5 inches, which in practice means a width that is only 1.5-2 cm narrower than 50-inch TVs. 4K X-Reality PRO and Triluminos Dispaly technologies are primarily responsible for the image quality of the Sony KD-49X7055. The first interpolates images in real time to near 4K quality, giving them clarity. In turn, thanks to the Triluminos display, images have bright, accurately reproduced colors .

The picture quality is very good and the optimal sound is achieved thanks to the Clear Audio+ mode, which is equally realistic. This TV also has Smart TV features, although to a limited extent. On the other hand, Smart Plug & Play allows you to connect via cable and play movies, photos and music from your smartphone or USB drive . The advantage of this model is its low price in relation to the image quality offered.

Sony KD-49XH8505 Smart TV 4K

• Screen: 49 inches 4K Ultra HD
• Matrix: LCD IPS, 100 Hz
• Audio: 20W, 2.0ch, Dolby Atmos
• Connectors: 4x HDMI, 3x USB, CI+
• Tuner: DVB-T/T2, DVB-C, DVB-S/S2
• Energy class: B.
• Functions: Wi-Fi, Bluetooth, Smart TV, smartphone screen mirroring, recording to USB hard drive
• Dimensions without stand (W x H x D): 109.8 x 64.4 x 5.8 cm
• Dimensions with stand (W x H x D): 109.8 x 69.9 x 27.9 cm

The Sony KD-49XH8505 is one of the best 50-inch 4K TVs currently available in the market. Its screen diagonal is indeed 49 inches, but the width of the TV is about 1.5-2 cm smaller than that of a 50-inch TV. This model features a powerful X1 processor for 4K HDR imaging with the ability to interpolate 2K and Full HD movies to near 4K quality . In turn, Triluminos Display technology gives images natural and accurate colors . Vivid colors, better lighting and deeper blacks in movies are also thanks to Dolby Vision .

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