The question of the diagonal of the laptop screen is controversial. Many manufacturers do not indicate the actual size, but the rounded number of inches. Therefore, a laptop's passport will not particularly help here. Now we will try to describe several ways that will help us figure out how to find out the diagonal of a laptop (in real sizes). It is worth considering that the actual number of inches can differ greatly from the declared one.
Most manufacturers tend to round the diagonals up. But some still honestly inform users about screen sizes. The only trouble is that there are very few such companies. Well, let's get to knowing the real screen size.
If accuracy is not needed
If you are not interested in the exact size of the screen, then you can refer to the documentation of the mobile PC. The diagonal will be indicated in the technical specifications. Some manufacturers supply their device cases with special stickers describing the main technical specifications. There, too, the diagonal of the screen can be indicated. If not, we turn to the operating instructions and look for a section with the characteristics in it.
Most users have enough generalized information about the diagonal of the screen. However, some laptop owners want to know more. For example, the general inscription "17 inches" does not suit them. And this is correct, since it can be either less or more than the declared figure. Now let's move on to how to find out the diagonal of a laptop using simple measurements.
We use a ruler
Since our country uses a metric measurement system (meters, centimeters, millimeters), and laptop screen sizes in inches, you will have to not only measure the diagonal, but also calculate the required number of inches using a simple formula.
Measurement of the screen must be carried out from corner to corner along an inclined line. That is, the diagonal is the line between the two most distant corners of the screen. The main thing is not to confuse. There is nothing complicated in the measurement procedure itself. And you will see this now.
So, we apply a ruler to the screen and begin measuring the visible part of the screen. Then the resulting number must be divided by 2.54, in order to convert centimeters to inches. Now you get the real screen size. For example, if you got 43.18 in centimeters, then by simple division we calculate that the actual screen diagonal is 17 inches. Further in the same vein.
Search engines
The question of how to find out the diagonal of a laptop has another answer. You can refer to the rich reference material on the Internet. It is enough to drive a laptop model into the Yandex search line, and the system will give you a huge amount of results with a detailed description of the technical characteristics. However, finding out the actual screen size this way is very difficult. This way you can get only general information. But if you stumble upon a website for a detailed study of laptops, then it is possible that local "specialists" examined your model far and wide and provide reliable data.
However, you should not rely on the data of the Network. Not all sites verify the veracity of the information presented. To obtain the most accurate data, it is better to use directly the official websites of the device manufacturer. It is there that you can find the most accurate and complete information about your laptop and its screen.
What is the exact screen size for?
First of all, you need to know the real size in case of failure of the laptop display. To replace this element, being guided by general data is strictly not recommended. There are cases when users, guided by the inscriptions on the box, ordered a new matrix, but it did not fit, because it was more or less necessary. Accuracy is important here, and general information will not work.
Some need to know the real dimensions out of sheer curiosity. It is always interesting to find out how unscrupulous manufacturers are and by how many inches they have deceived users. Although this happens quite rarely.
Conclusion
Now the question of how to find out the diagonal of a laptop is no longer needed. And if the screen of your device fails, you can easily measure the old one and order a new one. There is nothing complicated about it. And for self-education it is useful to know how inches are counted in diagonals.