Before choosing a tablet model, decide on the dimensions. To do this, you need to determine what you will use it for. 7 inches - compact, lightweight, 16:10 aspect ratio. 8 inches is still compact, but the aspect ratio is 4:3. 9.7 inches - big, heavy, 4:3. You can work comfortably with office applications. Reduced mobility. 10.1 inches - large, heavy, 16:10. It is more convenient to watch movies than on 9.7 inch. There are other sizes and aspect ratios, but they are less common.

So, let's begin:

7 inch tablet
The length of the diagonal is approximately 18 cm. The smallest and lightweight tablet, submitted. It is very convenient to play on it due to the fact that the fingers reach all over the screen. Ideal for children, because. Lightweight, very convenient to take on the road. If you are going to edit text on this tablet, then there will be a slight inconvenience, because. the keyboard will take up most of the screen, the text will be small and it will be difficult to get your finger into the right part of the text. Therefore, this size is suitable for entertainment, reading, but not for office applications.

8 inch tablet
If you need portability but don't like a stretchy screen, then an 8-inch tablet is the way to go. The diagonal length is 20 cm. It looks more like a real book, so it will be more convenient to read and edit text on it. If you watch a movie on such a tablet, then there will be a black bar below and above. Comparing 7 and 8 inches, we can say that the difference is insignificant - a different aspect ratio.

Tablet 9.7 inch
The diagonal length is 24.5 cm. Thanks to the iPad, this is the most common screen size. A versatile tablet that can do everything. But because of big screen it becomes uncomfortable to play. If one finger is enough for the game, then there are no questions, and if two hands are enough, then the fingers do not reach all over the screen. Also, due to the weight of the tablet, the hands get tired quickly. If you watch movies, then just like on an 8-inch tablet, there will be black bars at the top and bottom. Still, this size is more suitable for office applications and for stationary use. Since this is the most common size, if you do not know what to choose, take this size.

Tablet 10.1 inch
Most big tablet, from the presented ones, with a diagonal of 25.5 cm. For those who like a large tablet, but do not like the aspect ratio of 3:4, like on a 9.7-inch tablet. It is convenient to watch a movie, because. it will take up the entire screen. You can also work with office applications, but in a vertical position, because. The keyboard takes up almost the entire screen. It is not recommended for children because the weight is quite large.

Sooner or later, you come across the fact that some values ​​\u200b\u200bare indicated in inches. And to find out how much it is in centimeters, you need to convert inches to centimeters. You can calculate, find in a table, or use a converter application.

Inches (inches), designation

Part of the world measures sizes in inches and feet. In fact, meters, centimeters, millimeters are also usually used, but inches are more common. These are the units of measurement in the USA, Canada, Great Britain. And the rest follow after them. It so happened, for example, that the diagonals of TVs, screen sizes in smartphones, shoe sizes (and much more) are indicated in inches. So you have to think about how to convert inches to centimeters, meters or millimeters.

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

First, let's talk about how these inches are indicated. 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 are put in. It occurs in the text. There is also a graphic image - these are two dashes at the top near the number. For example: 3″, 5.2″. This is read as 3 inches, five and two inches.

Inch to centimeters, millimeters: how much is this?

To convert inches to centimeters, remember that one inch is 2.54 cm or 25.4 mm. The number is not so big, you can remember it or write it down somewhere.

One inch is 2.54 centimeters

Sometimes numbers just don't want to stay in memory. Pictures can help, or you can try to imagine something that size. Probably everyone knows the fairy tale about Thumbelina. So, this fairy-tale character was one inch tall, that is, a little more than two and a half centimeters. Might help someone remember.

How to convert inch to centimeters

• 2 inches is how many centimeters: 2″ * 2.54 cm = 5.08 cm.

We act similarly with any other value:

• 7 inches is 7″ * 2.54 cm = 17.78 cm;
• three inches = 3″ * 2.54 cm = 7.62 cm;
• 50 inches in centimeters is 50″ * 2.54 cm = 127 cm or 1 meter and 27 cm.

Convert inches to centimeters and millimeters (cm and mm)

Fractional inch conversion and table

But size is not always an integer. Often there are tenths of the same inch. Not to say that this greatly complicates the task of converting to centimeters. You just won’t find tables with such values ​​- they are too large. So, of course, you have to count yourself. And you need to act in the same way: multiply the size in inches by 2.54 cm.

• 1.2 ″ translate into centimeters - 1.2 ″ * 2.54 cm = 3.048 cm or almost 3.05 cm (this is after rounding);
• 5.7″ - 5.7″ * 2.54 cm = 14.478 cm. After rounding, we get 14.5 cm.

If the size is indicated by ordinary fractions, the translation is a little more complicated. It is necessary to divide 2.54 cm by the denominator (this is the number that is at the bottom) and multiply by the numerator (the number at the top of the fraction). Consider examples. So it will be clearer.

• 3/5″ is translated into centimeters as follows: 2.54 cm / 5 * 3 \u003d 1.524 cm. That is, 3/5 inch is 1.52 cm.
• 1/4″ in centimeters is 2.54 / 4 * 1 = 0.635 cm, that is, it is 6.4 mm.

If the size is indicated as a correct fraction, that is, there is an integer and a fractional part - 2 1/3 ″ or 5 3/8 ″, to say how much it is in centimeters, multiply the integer part by 2.54, and proceed with the fractional part as described above. Consider examples:

• 3 4/7″ must be converted to centimeters. First we translate the whole part. It's 3″. We multiply this figure by 2.54 cm. 3″ * 2.54 cm = 7.62 cm. Next, we translate fractional part: 4/7″ is 2.54 / 7 * 4 = 1.45 cm. And now we add both results: 7.62 cm + 1.45 cm = 9.07 cm. That is, 3 4/7 ″ equals 9 .07 cm.
• Let's move another 2 2/3 inches. Whole part - 2 ″ * 2.54 cm = 5.08 cm. Fractional 2/3 ″ - 2.54 cm / 3 * 2 = 1.69 cm. In total we get: 5.08 cm + 1.69 cm = 6 .77 cm

All these operations are easy. You will need a calculator, which is on any phone. If you don’t even want to count on a calculator, there are tables that show the most popular values. They can also be saved to your phone or printed out. In general, as you wish.

Reverse translation: centimeters to inches

Less often, we need to convert centimeters to inches, but such tasks also occur. There are two ways. First: divide centimeters by 2.54 and get the value in those same inches. Second: you need to remember how many inches are in one centimeter (0.39″ in 1 cm) and when translating centimeters, multiply by this number.

Which way is better? First. There are two reasons. The first is that it’s easier to keep one number in mind. Secondly, this method gives a more accurate result. Simply, when deriving the figure 0.39, the value was rounded off, which increases the error. To illustrate, let's do a couple of translations.

Two ways to convert cm to inches

We need to convert 27.6 cm to inches. Let's do it in two ways:

• 27.6 cm / 2.54 cm = 10.86″.
• 27.6 cm * 0.39 = 10.76″.

As you can see, there is a difference. This is exactly the error they were talking about. If you need a more accurate value, it is better to use the first method. It's more accurate.

Let's see one more example. Convert 100 cm to inches.

• 100 cm / 2.54 = 39.37″;
• 100 cm * 0.39 = 39.0″.

As you can see, there is a rather large error. So if precision is important, use the division method.

Applications for converting inches to centimeters and vice versa

Using the calculator on your phone to convert inches to centimeters is the easiest. There are many more applications that allow you to do this almost automatically. All you need is to enter Play Market and enter the query in the search bar: convert inches to centimeters. Drops out about a dozen applications.

Converter inches to cm can be put on the phone

There are those that convert only inches to centimeters or millimeters, and there are those with the ability to convert different values. All work adequately, you need to choose the one that is more convenient for you. In general, they work on the same principle. First, choose what you want to translate into, then drive in the number you want to translate. The desired value is displayed on the screen. The truth is simple.

Buyers make a choice of a certain tablet model, based on different characteristics of the device. Apart from operating system, internal memory and others specifications the user often pays attention to the screen size. There are generally accepted standards for the size of monitors, which will be discussed below.

What are the sizes of tablets in inches

There are several options for tablet diagonal sizes in inches. For example, a table is presented where the dimensions are presented in inches and centimeters. Basically, of course, it is measured in inches.

7 inches. A small tablet that fully performs its mobile functions. Slightly larger than a cell phone. Good for touch screen gaming. You don't have to move the brush, just grab the device from both sides. A good choice for children and those who travel often and prefer to take gadgets with them. As for typing, this will have to be sacrificed, because the keyboard will take up most of the screen, but the buttons will still remain small. There are representatives with an aspect ratio of 3 to 4 and 16 to 10.

8 inches. A slight increase in the previous version. The size resembles a standard book, so reading or taking notes on such a device will be the most convenient. Mobility remains, but watching movies is not the best best use such a screen. Black stripes will most likely remain on the sides of the image. Like last time, there are two types of resolution with such a diagonal - 3x4 and 16x10.

9 inches. Slightly enlarged previous version, found only with a length-to-width ratio of 16 to 10. It is rare, and will not make great weather, you need to choose with an eye to other signs.

9.7 inches. This format is considered standard for iPads. The screen is too big for gaming touch screen, but if you connect the joystick, the problem will be solved. Watching movies and typing text is already much easier. But do not forget that the study of each pixel takes strength random access memory, therefore, the wider and higher the screen, the more energy is spent on displaying the image. Some users complain about the large weight of the gadget. This choice is great for office work.

10.1 in. The tablet is heavy for standard manipulations, but great for watching movies - the aspect ratio is ideal for video formats. For all other purposes, it will not be very convenient.

12+ inches. Rare representatives of the tablet family, the size of the monitors of which is comparable to the dimensions of the laptop display. This device cannot be called mobile, big sizes paid off by the inconvenience and fragility of the structure.

What are the sizes of tablets in centimeters

Designations in centimeters are more understandable and familiar to residents Russian Federation, but there are no fundamental differences between inch ones:

• 17.8 cm. The smallest type of tablet, corresponds to 7 inches. Mobile, well suited for games, fits in your pocket. The ratio of length and width is 151x94 mm.
• 20.3 cm. The size is already bigger, it resembles a book. Fits in a small bag, adapts well to use as a "reader". Length and width, respectively, 163x122 mm.
• 23 cm. Mediocre, "standard" version. If you use the tablet as a guide to the Internet without involving third-party functions, then 9 inches is the most suitable choice.
• 24.6 cm. This choice is already considered quite overall, the most it is for office work or permanent text editing. Aspect ratio: 197x148 mm.
• 25.7 cm. Enlarged "office" screen. Movies on such a “giant” are much more convenient to watch, but the weight can be inconvenient. Screen 217x136 mm.

The largest and smallest tablet

In addition to the generally accepted sizes, there are outstanding representatives of " mobile computers”, which were created not so much for the sake of functionality, but more to participate in the size competition.

The world's largest tablet is the Ardic Technology London Edition. It will no longer be possible to take it with you on the road, put it in a bag, in a briefcase, bring it into the house, lift it up. Its diagonal is 383 inches, and it is inconvenient to work on such a hulk, to put it mildly. The giant comes with a giant typing keyboard, but it doesn't solve the problem.

The world's smallest working tablet is the LEXAND SB5 HD car tablet. Diagonal - 5 inches. It is not so different from the usual representatives of its kind, but it is not so easy to place the technological filling in a small case. This device is more like a phone in its dimensions.

With these inches, nothing is clear. It would be much easier if manufacturers indicated the diagonals of manufactured devices in centimeters. So we could determine the diagonal of the screen by eye and decide for ourselves whether it is a lot or a little. But usually phones and tablets are indicated in inches. Therefore, one often hears from buyers: "Diagonal 7 inches - how much is it?" Let's understand these units of measurement once and for all.

Diagonal 7 inches - how much is it in centimeters?

The easiest way to figure it out is to convert inches to centimeters. Connoisseurs know that one inch is equal to 2.54 centimeters. Based on this, it is easy to calculate how much it is - a diagonal of 7 inches. It will be equal to 17.78 centimeters. Take a regular ruler and see what kind of segment it will be. In the future, if you don’t understand the diagonal, you can already translate inches into centimeters yourself: just multiply the value by 2.5. This can be done even in the mind. If you have a calculator, then multiply by 2.54. That will be more accurate.

TV Diagonal

If you are trying to match a TV, then one of the important parameters is its length between two opposite edges - the bottom and top. This is the diagonal of the TV. Modern models are produced with different diagonals. There are very large TVs with a diagonal of 50 inches or more. But the models that are now the most popular and common have a diagonal of 32 inches. This is the "golden mean" between a huge cinema and a small model for the kitchen.

But as for seven inches, this is extremely small for a TV. Perhaps there are no such models with such a miniature diagonal. However, there are special or travel devices on the market, but such devices have been popular for a long time. Now they have been replaced by tablets.

Tablet screen size

It is worth noting that most tablets are exactly 7 inches. This category usually includes inexpensive budget models which are in the highest demand. They fit perfectly in the hand, making them easy to control. It is not necessary to install a matrix with high resolution, which reduces the cost of the tablet itself.

The most popular models with a diagonal of 7 inches are:

1. Huawei MediaPad.
2. PocketBook Surfpad U7.
3. 4Good T700i.

There are also models from the popular Korean manufacturer Samsung. You can list them for a long time, but the fact is that a 7-inch diagonal is ideal for an inexpensive budget tablet.

There is another category - gadgets with a diagonal of 9-10 inches. The manufacturer Apple set the tone for this “fashion”, which in 2010 introduced a tablet with a diagonal of 10″ on the market. And although in fact there are only 9.7″, nobody cares anymore. Many modern gadgets with such a diagonal are positioned precisely as 10-inch tablets.

There are other models with 12-inch screens, but this is already rare.

Mobile phones

If you still can’t imagine how much it is - a diagonal of 7 inches, then visualize a smartphone that barely fits in one hand. It is this phone that has approximately the same diagonal. But this is also rare, because most mobile phones equipped with 5-inch screens. There are also versions with 5.5-inch screens. 6-inch smartphones are rare, and models with 7-inch matrices are generally few.

Popular iPhone smartphone 7 received a diagonal of 4.7 inches (almost 5), and the new Korean Samsung flagship The S8 has a 5.8 inch screen. But it is worth recognizing that the matrix of this smartphone is not classical. I even had to introduce a new term Infinity Display to explain the large diagonal.

Conclusion

Remember the number "2.54". To understand how much it is - a diagonal of 7 inches, just multiply the value by 2.54, or at least 2.5 for higher accuracy.