More recently, when buying a smartphone or tablet, people turned to the Internet to understand the question: a 5-inch diagonal is how many cm the phone screen is, its dimensions in width and height. First we had to find out how much 1 inch is in centimeters, and then convert the diagonal of a 5″ phone into cm. Now almost everyone who has purchased a new device, be it a TV receiver, computer monitor or tablet, already knows that an inch is an English unit measures, and it is equal to 2.54 cm.
Smartphone on the table
Dimensions in centimeters
The diagonal of a 5-inch phone is 12.7 cm. This value can be obtained independently, knowing only 2 parameters - the diagonal (or the size of the screen in inches from the bottom corner to the upper corner diagonally opposite it) and the exact value of the inch in centimeters.
It doesn’t matter what method the potential buyer used when searching for information:
- I found a conversion table on the Internet, where someone who was not lazy had already taken the trouble to convert inches to cm and, with millimeter precision, indicated how many centimeters 5″, 10, 26 and 30 inches are;
- I used the thoughtfully provided online calculator to multiply 5″ (the double slash is the symbol for an inch) by 2.54 centimeters;
- I found a calculator for the same operation on my own mobile phone;
- I measured the distance from corner to corner with a tape measure or measuring tape and determined how many cm the diagonal is, when the description says that the phone screen of the favorite model is 5″.
In the office
But all these calculations and manipulations on which information sites earn traffic and ratings give the potential buyer only one single parameter - the diagonal of a 5″ phone (smartphone), converted into more familiar metric units of measurement - centimeters.
The average person develops thinking stereotypes during their upbringing. It’s not enough for him to convert 5 inches to centimeters and find out the diagonal size of the coveted smartphone.
Comparison of options
Screen distance for comfortable viewing
Image resolution is determined in pixels - image reproduction points per unit area. On large panels, when showing old films and TV programs, you can see blurry contours and a blurry picture.
Distance to TV according to standards
The 22″ monitor is unique, it is suitable for any image reproduction format. At the same time, it is convenient to work at the computer. All pictures and graphics are clearly visible and the content is easy to read.
The image quality of a 22-inch TV depends on the distance to the screen. The question often arises about how many centimeters should be between the device and the chair in order for all analogue and digital TV programs to be clearly perceived without distortion.
The norm is defined as 3 diagonals for DVD transmissions, 2 diagonals for HD screens. The computer reproduces images with Full HD resolution and higher; the distance from the eyes to the monitor is allowed to be 1.2–1.5 diagonal lengths.
Distance standards
A normal 22″ TV should be located no closer than 1.7 meters from the viewer. It is enough to remove the computer monitor 70 cm from the eyes.
The relatively small size of the screen does not allow it to accommodate 4000 pixels. Therefore, 4K resolution screens have significantly larger sizes, starting from 50 inches.
All types of television receivers with a diagonal of 22″ do not exceed 48.7 centimeters in width. This ensures a comfortable viewing experience since there is less than 20 degrees between your eyes and the edges of the screen.
TV receiver height
The image will begin to lose color and clear outlines if it moves more than 10 degrees away from the center. You can comfortably watch TV programs at a distance of 2–2.5 m, sitting directly in front of the screen, or at a distance of 0.5–0.7 m away from the center.
The height at which the monitor is installed is also calculated diagonally. The center of the image should be at eye level of a sitting person - approximately 1 meter from the floor. For 22″ models, the bottom edge of the screen should be at a height of 80–90 cm from the floor.
International standards: centimeters and inches
To get an approximate idea of the length and width (height) of the screen, you need to know the aspect ratio and again refer to the calculations using a school geometry course. To do this, you should calculate the sides of a square or rectangle according to the theorem.
Various models
There, from the known data, there is only a common side of two conditional triangles - the diagonal of the screen in centimeters or inches. Visualization of a smartphone for a simple user is only available if one knows what the width and height of the electronic device is in cm.
How to get the information you need
For the average domestic consumer, who has spent his entire life taking measurements in meters, kilometers and centimeters, the important information is not the diagonal in inches. Even if, based on its appearance, he has planned to purchase a TV of approximately this size, and the description indicates that the screen size is 19″ diagonally.
High screen resolution
He is interested in the width and height of the device, its ability to fit seamlessly into the allotted space. Statistical studies have shown that the 19-inch monitor screen is in the lead in the sales ranking for home use. For office needs, people still buy 17″ monitor screens, but there is a trend towards moving to nineteen-inch monitors.
A TV with such parameters is much less in demand. In spacious rooms, such a small screen size is irrational, and in a small kitchen it is not always possible to maintain the required safe viewing distance.
TV in inches
Experts advise purchasing a 19″ or 20″ TV diagonal for small rooms with an area of 6–8 square meters. m. To see a high-quality image, the distance between the TV and the viewer must be at least three diagonal sizes.
The formula works here - the distance to the viewer is equal to three diagonals in inches or cm. And the diagonal of the TV is equal to a third of the distance to the person.
In choosing a device, the diagonal also plays a certain role when the normal distance (in centimeters or inches) from the organ of vision is selected.
But when it comes to placement in a limited space, knowing how much is in cm is not enough, because different types of computer monitors are made with varying aspect ratios. These are 3:4, 16:10 and 16:9.
In the bedroom
Dimensions from inches to cm
A table of the height and width of devices such as a laptop, TV, tablet, computer monitor at different aspect ratios is presented below.
Aspect Ratio: inches to centimeters
Main parameters:
- Width.
- Height.
Dimensions in inches
The aspect ratio must be addressed if information about the actual size of the coveted electronic device is urgently needed. Recently, the demand for square screen numbers has disappeared from the usual list. This is due to the emergence of new models and developed technologies.
What to look for when choosing?
To buy a 19-inch LED TV, you need to carefully study the technical characteristics, for example, operating frequency. It differs for different models, and the image quality depends on it. Rate is the number of times an image is updated per second (not to be confused with frames). The parameter is measured in hertz. If the frequency is 60 Hz, then the image will be updated 60 times per second.
The human eye cannot detect higher frequencies, but this is important for different playback formats, for example, for a TV to be able to reproduce three-dimensional content at 60 fps, its operating frequency must be at least 120 Hz.
You can purchase equipment with a higher frequency: this will provide improved picture quality.
The best 19-inch TVs
To buy a 19-inch TV (the best budget or more expensive), you will need to study in advance the ratings of the most popular devices offered by stores.
ERISSON 19LES76T2
This model occupies one of the first places in the ranking, considering the ratio of quality and cost. It has a large number of options that can be useful to the user. The positive aspects include the following:
- Attractive design that can be combined with the interior.
- Reduced width.
- The kit includes a special mount with which you can place the device on the wall, without having to pay extra to purchase Vesa separately.
- The matrix, whose resolution is 1366x768, makes the picture clear and rich in colors.
- There is Edge LED backlighting.
- There are 2 built-in speakers, both have a power of 3 W, in addition, you can connect headphones.
- The device accepts digital signals in DVB-C, -T, -T2 formats.
- There is a USB port for connecting external media.
- HDMI connector.
The disadvantages include several points:
- Delays in signal processing.
- Delay when issuing a command from the remote control due to a weak processor.
If high-speed channel switching is not important to the buyer, then this device will be suitable for performing its tasks.
FUSION FLTV-20C100
The average price of this TV is 6,000 rubles; it is a budget device that is affordable to many buyers. Like the previous model, the TV is a success and is also produced in Russia.
In terms of functionality, the model does not differ from its full-size analogues, so it is used as a full-fledged device for displaying TV.
The advantages include the following:
- The presence of LED backlighting, due to which the image becomes brighter and clarity increases, is especially noticeable if the room is dark or the light is dim.
- The matrix resolution is standard – 1366x768.
- The viewing angle has been increased to 170 degrees, which is convenient for use in the kitchen or family movie watching. Thanks to this, the model differs from a number of competitors in the same price segment.
- There is a sleep timer and you can set child lock.
- HDMI and USB port provided.
- There are two speakers, the power is 4 W.
The only disadvantages include a weak processor, due to which, after pressing the remote control button, you have to wait for some time for the device to respond.
THOMSON T19RTE1060
Belongs to the same category as previous models. On the Russian market, a TV costs 6500-7000 rubles. By purchasing it, the buyer receives a screen with a good image, a wide viewing angle, and an optimal set of functions for little money.
Advantages of the device:
- The picture is rich, has increased clarity and brightness.
- The viewing angle is 178 degrees.
- The image is clear and realistic, because the device operates with a resolution of 720p HD with a standard 1366x768 matrix.
- Edge LED lighting.
- You can not only watch movies from a USB drive, but also record any program onto a flash drive while watching.
- The tuner is built-in, so the device reproduces most known broadcast formats.
- The sound is provided by two speakers with a power of 3 W. There is a port for using headphones.
Minuses:
- The frequency is 50 Hz, so the TV will not be able to reproduce 60 fps content.
- Thoughtful channel switching.
