Sooner or later, you come across the fact that some values are indicated in inches. And to find out how much it is in centimeters, you need to convert inches to centimeters. You can count, find in a spreadsheet, or use a converter app.
Inches, designation
Part of the world measures dimensions in inches and feet. Actually, usually meters, centimeters, millimeters are also used, but inches are more common. These are the units of measurement in the USA, Canada, Great Britain. And the rest follow 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 a trivial 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, this is inch. If there are many (inches), write inches. In the abbreviated version, use only the first two letters in. This is found in the text. There is also a graphic image - these are two dashes at the top near the number. For example: 3 ″, 5.2 ″. It reads like 3 inches, five and two inches.
Inch in centimeters, millimeters: how much is it?
To convert inches to centimeters, you need to remember that one inch is 2.54 cm or 25.4 mm. The figure is not so big, you can remember it or write it down somewhere.
One inch is 2.54 centimeters
Sometimes numbers don't want to stay in memory. Pictures can help or you can try to imagine something of this size. Probably everyone knows the tale about Thumbelina. So, this fairy-tale character was one inch tall, that is, a little more than two and a half centimeters. Can someone help 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.
Converting inches to centimeters and millimeters (cm and mm)
| Inches | Centimeters | Millimeters | Inches | Centimeters | Millimeters | Inches | Centimeters | Millimeters | Inches | Centimeters | Millimeters |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2,54 | 25,4 | 15 | 38,1 | 381 | 29 | 73,66 | 736,6 | 43 | 109,22 | 1092,2 |
| 2 | 4,08 | 40,8 | 16 | 40,64 | 406,4 | 30 | 76,2 | 762 | 44 | 111,76 | 1117,6 |
| 3 | 7,62 | 76,2 | 17 | 43,18 | 431,8 | 31 | 78,74 | 787,4 | 45 | 114,3 | 1143 |
| 4 | 10,16 | 101,6 | 18 | 45,72 | 457,2 | 32 | 81,28 | 812,8 | 46 | 116,84 | 1168,4 |
| 5 | 12,7 | 127 | 19 | 48,26 | 482,6 | 33 | 83,82 | 838,2 | 47 | 119,38 | 1193,8 |
| 6 | 15,24 | 152,4 | 20 | 50,8 | 508 | 34 | 96,36 | 963,6 | 48 | 121,92 | 1219,2 |
| 7 | 17,78 | 177,8 | 21 | 53,34 | 533,4 | 35 | 88,9 | 889 | 49 | 124,46 | 1244,6 |
| 8 | 20,32 | 203,2 | 22 | 55,88 | 558,6 | 36 | 91,44 | 914,4 | 50 | 127 | 1270 |
| 9 | 22,86 | 228,6 | 23 | 58,42 | 584,2 | 37 | 93,98 | 939,8 | 51 | 129,54 | 1295,4 |
| 10 | 25,4 | 254 | 24 | 60,96 | 609,6 | 38 | 96,52 | 965,2 | 52 | 132,08 | 1320,8 |
| 11 | 27,94 | 279,4 | 25 | 63,5 | 635 | 39 | 99,06 | 990,6 | 53 | 134,62 | 1346,2 |
| 12 | 30,48 | 304,8 | 26 | 66,04 | 660,4 | 40 | 101,6 | 1016 | 54 | 137,16 | 1371,6 |
| 13 | 33,02 | 330,2 | 27 | 68,58 | 685,8 | 41 | 104,14 | 1041,4 | 55 | 139,7 | 1397 |
| 14 | 35,56 | 356,6 | 28 | 71,12 | 711,2 | 42 | 106,68 | 1066,8 | 56 | 142,24 | 1422,4 |
Fractional inches conversion and table
But size is not always an integer. There are often 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 big. So, unambiguously, you will have to count yourself. And you need to act in the same way: multiply the size in inches by 2.54 cm.
- We convert 1.2 ″ 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 specified in regular fractions, the translation is a little more complicated. You need to divide 2.54 cm by the denominator (this is the figure that is below) and multiply by the numerator (the figure at the top of the fraction). Let's look at some examples. This will make it clearer.
- We translate 3/5 ″ into centimeters like this: 2.54 cm / 5 * 3 = 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.
| Size in inches | Size in millimeters | Size in centimeters | Size in inches | Size in millimeters | Size in centimeters |
|---|---|---|---|---|---|
| 1/16" | 1.59 | 0.16 | 2 1/4" | 57.2 | 5.7 |
| 1/8" | 3.18 | 0.32 | 2 3/8" | 60.3 | 6.0 |
| 1/4" | 6.4 | 0.64 | 2 1/2" | 63.5 | 6.4 |
| 3/8" | 9.5 | 0.95 | 2 5/8" | 66.7 | 6.7 |
| 1/2" | 12.7 | 1.27 | 2 3/4" | 69.8 | 7.0 |
| 5/8" | 15.9 | 1.6 | 2 7/8" | 73.0 | 7.3 |
| 3/4" | 19.0 | 1.9 | 3" | 76.2 | 7.6 |
| 7/8" | 22.2 | 2.22 | 3 1/8" | 79.4 | 7.9 |
| 1" | 25.4 | 2.54 | 3 1/4" | 82.6 | 8.3 |
| 1 1/8" | 28.6 | 2.9 | 3 3/8" | 85.7 | 8.6 |
| 1 1/4" | 31.6 | 3.2 | 3 1/2" | 88.9 | 8.9 |
| 1 3/8" | 34.9 | 3.5 | 3 5/8" | 92.1 | 9.2 |
| 1 1/2" | 38.1 | 3.8 | 3 3/4" | 95.2 | 9.5 |
| 1 5/8" | 41.3 | 4.1 | 3 7/8" | 98.4 | 9.8 |
| 1 3/4" | 44.4 | 4.4 | 4" | 101.6 | 10.2 |
| 1 7/8" | 47.6 | 4.8 | 4 1/8" | 104.8 | 10.5 |
| 2" | 50.8 | 5.1 | 4 1/4" | 108.8 | 10.9 |
| 2 1/8" | 54.0 | 5.4 | 4 3/8" | 111.1 | 11.1 |
If the size is indicated in the form of a correct fraction, that is, there is an integer and a fractional part - 2 1/3 ″ or 5 3/8 ″, to say how many it is in centimeters, we multiply the whole part by 2.54, and with the fractional part we proceed as described higher. Let's look at some 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 the 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 translate 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.Total: 5.08 cm + 1.69 cm = 6 , 77 cm.
All these operations are simple. You will need a calculator, which is available on any phone. If you don't even want to count on a calculator, there are tables in which the most common values are indicated. They can also be saved on the phone or printed out. In general, as you like.
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 we 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 converting centimeters, multiply by this number.
Which is the best way? First. There are two reasons. The first is that it is easier to keep one number in mind. Second, this method gives a more accurate result. Simply, when displaying the figure 0.39, the value was rounded, which increases the error. To illustrate, let's do a couple of translations.
Two ways to convert cm to inches
It is necessary 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 that we talked about. If you need a more precise value, use the first method better. It is more accurate.
Let's see another example. Let's 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 margin of error. So if precision is important, use the division method.
Apps to convert inches to centimeters and back
Using the calculator on your phone to convert inches to centimeters is the easiest thing. There are many more applications that allow you to do this almost automatically. All you need is to go to the Play Store and enter a query in the search bar: the conversion of inches to centimeters. About a dozen applications are dropped.
You can put an inch to cm converter on your 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 according to the same principle. First, choose what you translate into, then drive in the number that you want to translate. The required value is displayed on the screen. The truth is simple.
Buyers make a choice of a specific tablet model based on different characteristics of the device. In addition to the operating system, internal memory and other technical characteristics, 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 dimensions are presented in inches and centimeters. Basically, of course, it is measured in inches.
7 inches. A small tablet that completely fulfills its mobile functions. Slightly larger than a mobile phone. Good for touch screen gaming. You don't have to move your hand, just grab the device from both sides. A good choice for children and those who often travel 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 by 4 and 16 by 10.
8 inches. A slight increase in the previous version. The size resembles a standard book, so reading or writing will be the most convenient on such a device. Mobility remains, but watching movies is not the best use of such a screen. Black stripes are likely to 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 ratio of lengths to widths of 16 to 10. It is rare, and will not do much of the 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 touchscreen gaming, but connecting a joystick will fix the problem. Watching movies and typing text is already much easier. But do not forget that processing each pixel takes the power of RAM, therefore, the wider and higher the screen, the more energy is spent on displaying the image. Some users complain about the heavy 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 family of tablets, the size of monitors which are comparable to the dimensions of a laptop display. This device cannot be called mobile, the large size is paid off by the inconvenience and fragility of the design.
What are the sizes of tablets in centimeters
Designations in centimeters are more understandable and familiar to residents of the Russian Federation, but there are no fundamental differences between inches:
- 17.8 cm. The smallest tablet view, at 7 inches. Mobile, good for games, fits in your pocket. Length-to-width ratio 151x94 mm.
- 20.3 cm. The size is already bigger, it looks like 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. Such a choice is already considered to be rather oversized, so it is for office work or constant 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 - 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. Its diagonal is 383 inches, and to put it mildly, it is inconvenient to work on such a whopper. The giant comes with a giant typing keyboard, but it doesn't solve the problem.
The world's smallest working tablet - the LEXAND SB5 HD in-car. The diagonal is 5 inches. It is not so different from ordinary representatives of its kind, but it is not so easy to put the technological filling in a small case. This device looks more like a phone in terms of its dimensions.
With these inches, nothing is clear. It would be much easier if manufacturers indicated the diagonals of their devices in centimeters. So we could determine the screen diagonal by eye and decide for ourselves whether it is a lot or a little. But usually phones, tablets are indicated in inches. Therefore, one often hears from buyers: "7-inch diagonal - 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 equals 2.54 centimeters. Based on this, it is easy to calculate how much is a 7-inch diagonal. It will be equal to 17.78 centimeters. Take a regular ruler and see what the segment will be. In the future, if you don't understand the diagonal, you can translate inches to centimeters yourself: just multiply the value by 2.5. It can be done even in the mind. If you have a calculator, then multiply by 2.54. This will be more accurate.
TV diagonal
If you are trying to pick up a TV, then one of the important parameters is its length between two opposite edges - bottom and top. This is the diagonal of the TV. Modern models are available in different diagonal sizes. There are very large TVs with a diagonal of 50 inches or more. But the models that are now the most popular and widespread have a diagonal of 32 inches. This is the "golden mean" between a huge cinema and a small model in 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 are superseded by tablets.
Tablet screen size
It is worth noting that most tablets are exactly 7 inches. This category usually includes inexpensive budget models that are in greatest demand. They fit perfectly in the hand, which makes them easy to operate. It is not necessary to install a high-resolution matrix in such a diagonal, which reduces the cost of the tablet itself.
The most popular 7-inch models are:
- Huawei MediaPad.
- PocketBook Surfpad U7.
- 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 the 7-inch diagonal is ideal for an inexpensive budget tablet.
There is another category - gadgets with a diagonal of 9-10 inches. This "fashion" was set by the manufacturer Apple, which in 2010 introduced a tablet with a 10 ″ diagonal on the market. And although in fact there is only 9.7 ″, nobody cares anymore. Many modern gadgets with such a diagonal are positioned exactly as 10-inch tablets.
There are other models with 12-inch screens, but this is already a rarity.
Cell phones
If you still can't imagine how much a 7-inch diagonal is, then visualize a smartphone that barely fits in one hand. Such a phone has approximately the same diagonal. But this is also rare, as most mobile phones are equipped with 5-inch screens. There are also versions with 5.5-inch screens. Rarely are 6-inch smartphones, and there are only a few models with 7-inch matrices.
The popular iPhone 7 smartphone has received a diagonal of 4.7 inches (almost 5), and the new Korean flagship Samsung S8 has a 5.8-inch screen. But we must admit that the matrix of this smartphone is not a classic one. 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 a 7-inch diagonal is, you just need to multiply the value by 2.54 or at least 2.5 for higher accuracy.
The year before last, Apple released two models of flagship smartphones - iPhone 7 and iPhone 7 Plus, which have many differences, but the main ones are the sizes of both devices. Now we will give you the exact numbers so that you have an idea of the dimensions of the new products, as well as compare them with each other and with competitors.
IPhone 7 Plus Dimensions
Naturally, with a 5.5-inch panel, the iPhone 7 Plus is larger. The length of its metal structure reaches 15.82 cm, the width is 7.79 cm, and the thickness is 0.73 cm. Due to the increased diagonal, the height of the screen was 12.18 cm, and its width is 6.85 cm. The ratio of the screen to the body of the phablet is the same as that of its predecessor - 67.89 percent.(banner_context)
Size comparison iPhone 7 and iPhone 7 Plus
Considering the difference in screen sizes, the iPhone 7 is noticeably more compact than its sibling, but the 4.7-inch model loses to the 5.5-inch one, albeit by a small margin. As you may have noticed, the screen-to-body ratio on the iPhone 7 Plus is slightly better at 67.89% versus 65.82%. This suggests that the larger device uses up the space of the front panel better.
One way or another, most people will find it uncomfortable to use the Apple iPhone 7 Plus, since it will need to be held in one hand, while the other is already controlled. In this regard, the iPhone 7 is more interesting. If you also have some kind of tablet, then there is no point in buying a 5.5-inch version.
Size comparison with Galaxy S7 Edge and OnePlus 3
The phablet iPhone 7 Plus is noticeably larger than the Galaxy S7 Edge, although the diagonal of their screen is the same. The smartphone from Samsung is less than 8 mm higher than its competitor in height, and it is also about 4 mm narrower. The only advantage of the Apple phone is its thickness. A similar situation is observed when comparing the sizes of the iPhone 7 Plus and OnePlus 3: the Chinese brand has made its product more compact, although not so thin.
Apple iPhone 7 is lower and thinner than Galaxy S7, although its diagonal is significantly smaller. He also loses to the “Korean” in terms of the volume of the built-in battery. The thickness of the flagship from Samsung is 0.79 cm, the width of its body reaches 6.96 cm, and the height is 14.24 cm. OnePlus 3, of course, loses to the seventh iPhone in all these parameters, but its screen is much larger.
13 November 2013Have you decided to buy a tablet? First, decide on the size, and only then study the number of cores, the size of the RAM, the processor and the screen.
Many of us divide tablets into large and small without any problems, but not everything is so simple: in the diagonal of the device, every centimeter matters. What are tablets of different sizes for?
7-inch screen
In the usual measurement, this is about 18 cm. Aspect ratio: 10 to 16.
The miniature tablet is convenient to carry with you everywhere: it fits into your pocket and purse. As a rule, such tablets are also lightweight. It is convenient to play on them for fans of "Angry birds" and other entertainment applications, where you need to reach all points of the screen with your fingers.
Seven-inch film fans will also like it. With her, you can always and everywhere watch a movie. Of course, the screen of a baby tablet is not as large as we would like, but it can give you the most. This aspect ratio: 10 to 16 - allows you to stretch the image to fill the screen.
However, it is inconvenient to work with text on such a tablet. If you open the on-screen keyboard when the tablet is in a horizontal position, it will close the entire screen. And if you turn the device vertically, you will have to type with only one hand.
8-inch screen
Diagonal - almost 20 cm. Aspect ratio: 3 to 4.
Such a screen is less elongated. On the one hand, this is good: it is more convenient to work in browsers and text documents. On the other hand, when you watch a movie, there are black bars at the top and bottom. And if you stretch the frame in height, then the stripes will appear on the sides.
It is just as convenient to play on it as on the "seven": holding the device in your hands, you can reach any part of the screen with your thumbs. With the 8-inch, you can enjoy racing: the tablet is lightweight, and your hands do not get tired of turning the virtual steering wheel in different directions.
9.7-inch screen
The diagonal is about 25 cm. The aspect ratio is 3 to 4 (as on the 8-inch).
Such a screen opens up great possibilities. For those who work in graphic editors, it is better to choose it. The smallest objects are clearly visible on the display.
If you happen to type a lot, 9.7 inches is for you: the on-screen keyboard allows you to comfortably position both hands. And in general, on large tablets it is much more comfortable to work in office documents.
But for fans of racing and "shooters" it is not very convenient to hold the tablet. Large devices weigh at least 600 grams, hands get tired quickly. If you turn on a cartoon or a game for a child, it is better to put the tablet on the table so that the baby does not get tired. And at the same time, drawing, coloring, playing educational games on such a tablet is more convenient: it is easier for a kid to navigate on a large screen. The main thing is, before you turn on the game, sit the child at the desk.
Screen 10,1 inches
Diagonal 25 cm. Aspect ratio: 16 to 10 (like 7-inch).
This is the perfect size for movie lovers. The screen is large enough to enjoy the picture. And frames, thanks to the specified aspect ratio, are stretched to fill the entire display.
Typing when the tablet is horizontal is uncomfortable: the on-screen keyboard slides out and takes up most of the page. Therefore, you have to keep it upright.
So, different tablet sizes open up different possibilities for us.
- If you need a lightweight tablet that you can take with you everywhere - take 7-inch... Especially if you watch movies a lot.
- If you need a mini-tablet on which you have to type text and spend a lot of time on the Internet - your option is 8-inch.
- A tablet for working in graphic editors, text files and various office applications is a device with a diagonal of 9.7.
- For those who want to get the most out of watching a movie and enjoy a big picture, we recommend taking a closer look at devices with a screen 10.1 inches.
The material was prepared with the informational support of the British electronics store ejuk
