How to know what size in inches or pixels my laptop screen is in Windows or Mac?

How to know what size in inches or pixels my laptop screen is in Windows or Mac?

Laptops have become a great tool and an ally when you have to work outside your home or work due to their small size. But how big or small is it? Today we will show you how to know the size in inches or pixels of my laptop screen in Windows or Mac.

On many occasions, we must transport our computer from one place to another, but to do so, we must store it in a case or briefcase to protect it from shocks and prevent it from breaking.

The problem arises when we do not know the size of our laptop and we end up buying something too big or too small that does not serve to protect it.

Also, knowing the size of a notebook screen can help you know if it will be useful for the work you want to do on it. That without leaving aside, knowing about the technical specifications and tools that it has.


How to know how many inches my laptop screen has step by step

Before starting, you should know that these types of computers have screens that range from 10 inches or 25.4 cm to 18 inches, that is, 46 cm, although this will depend on the model and brand of it.

To start, you need to have a tape measure and a unit converter or a calculator to manually change the unit by multiplying 2.54 by the number of centimeters your laptop has.

Remember to have your laptop turned off and open at an angle of 90º (ninety degrees) to be able to do it easily and without inconvenience.

We recommend that you use a tape measure to measure it because they are soft and smooth, so you would not run the risk of damaging it if you do it with a more rigid element.

You must find a point to start measuring. Keep in mind that it is calculated by measuring diagonally. So we recommend that you start in the bottom or top right or left corner of the screen.

Now extend the tape measure from the starting point to its opposite corner. Here you must measure the screen avoiding doing it from the frame of the screen, as this does not count as inches.

Finally you must do the unit step as we mentioned at the beginning:

cm laptop x 2.54 = inches of your screen

When you have done it, you will be able to know the number of inches that your laptop has.

laptop on

How to Calculate the Pixel Density of My Windows or Mac Laptop Screen

The first thing you should do is know the graphic density or PPi. It is directly linked to the size of your computer’s visor, because the larger the screen, the better graphic resolution you will have.

To do this, start by going into system settings. From there, enter the screen option.

Within this section, look for the advanced screen settings. In the Screen resolution section, click on the arrow that points down to select Maximum supported by the equipment.

It will give you the information as follows:

Width No. X Height No. of the screen.

With this data, we will proceed to perform some calculations. We recommend that you use a calculator for this, because no matter how good you are at math, they are big numbers.

You must add both numbers not before having raised them to the second power. Namely

(Width ²) + (Height ²) = value obtained

Next, you need to take the square root of this sum. Save this result for later:

√obtained value = value 2

Now you must take a tape measure and measure diagonally the size of the screen of your Mac or Windows laptop as we did in the previous section. But you should not pass it to inches, you will need this number in centimeters.

Finally, divide the value obtained after doing the square root of the sum of pixels and by the number of centimeters from the previous paragraph:

cm laptop / value 2

The result will be the pixel density of your laptop.

It is also useful that you know the refresh rate of a monitor to know how fluid the image is.


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