The size of a laptop is measured in inches, so you can quickly tell how big or small it is by looking at the numbers and units. The number representing this measurement is width x height x depth (in).


If you click on any link on & decide to buy it, we may earn a small commission. Laptops are available in various sizes and form factors, including 11-inch, 13-inch, and 17-inch. You may choose the one that best matches your needs. For example, if you’re a writer, a college student, a journalist, a doctor, or a businessperson, you could choose tiny and compact computers. On the other hand, professional gamers, web developers, and programmers may choose laptops with big screens.

However, if the need comes to know the size of your current laptop, you may follow some simple procedures for measuring the size of a computer. So, whether you need to know the size of your computer to purchase the correct laptop bag or to know the dimensions of your laptop if you want to measure its size, you’ve come to the right spot.

A laptop’s size is often measured in inches and has a standard size. However, it is not always essential, and it might be much more or even much less. Instead, you may make an educated prediction and purchase a bigger or smaller laptop bag, or perhaps even a laptop skin. So, follow the steps outlined below to have a good notion of the size of your laptop and even the screen for the various circumstances that it can handle.

Methods for Measuring Laptop Size

So, before we get started with the processes, there are a few things to keep in mind. First, before we go on to the measurements, please let us know what all the core principles are. Then, before you take the measure, there are a few things you should know.

To begin with, the screen size has no bearing on the laptop’s size. Both of them are distinct in that they do not contain the laptop’s bezel. Second, when purchasing a laptop bag, it is always good to add a few inches to the actual measurement.

You will also need a measuring tape or a prominent ruler to determine the size. Remember that this is not a screen measurement but rather a laptop measurement that encompasses everything. We have an excellent guide here that merely measures the screen size and provides helpful information.

Inches are the most common measurement unit used in most areas. However, if you want a different measurement, you may convert afterward. For example, we may now measure the laptop’s dimensions, height, width, depth, and diagonal.

Step 1: Take a diagonal measurement.

The first and most fundamental measurement that everyone should know is to estimate the laptop size or even the screen size precisely. The diagonal measurement is precise. The method isn’t complicated, but it is necessary to comprehend what must be done. For this measurement, we’ll be utilizing an Apple Macbook. The instructions, however, apply to any laptop manufacturer, including HP, DELL, Lenovo, ASUS, Acer, and MSI. To improve accuracy, you must now shut the laptop screen.


You were measuring a laptop’s diagonal length. Stretch the measuring tape from the bottom left corner of the computer to the top right corner. These are the dimensions of your computer. You may measure in inches or centimeters. Alternatively, you may convert to any unit you like. For example, a standard Macbook Air is around 15 inches or larger.

Step 2: Take a Height Measurement.

The height of the laptop will be measured next. Again, because you’re estimating a live model, make sure you do everything exactly as instructed.


You are measuring a laptop’s height. Place the measuring tape on the top-middle of the computer and extend it down to the bottom. This is the maximum height of your laptop or Macbook. If you’re searching for a bag, be sure to add a bit more to the measurement each time.

Step 3: Determine the width.

Now wWe’llure the laptop’s width to better understand its size. To correctly measure the width, lay the measuring tape horizontally on the computer’s top from left to right.


It measures a laptop’s width. So basically, do not add too much width to the objective dimension for the bag or any other function. Otherwise, it will seem weird and unwieldy to carry about.

Step 4: Take a Depth Measurement.

Finally, you’ll need to determine the laptop’s depth. To measure the depth of the computers, look over to the sides and set the measuring tape vertically on the sides. To better understand, look at the graphic below, which depicts the identical movement and how the measurement was completed.


You are measuring a laptop’s depth. It will also give you an idea of how thin or hefty your computer is for any other function you could use it for in the future.

How can I decide which laptop bag or skin to get depending on the size of my laptop?

Many people make the standard error of selecting a bag or a laptop case based on the screen size specified anywhere throughout the purchasing process. Instead, it should be based on the laptop’s accurate dimensions, including the borders and bezels.

If you followed the steps above to measure the dimensions of your laptop, you should now have the height, width, depth, and diagonal measurements. So, they are pretty much everything you need to choose a laptop bag, depending on size. If the precise measurement is unknown, design and quality become secondary.

Similarly, depending on the measurements, you may choose the appropriate Laptop skin for your computer. Because you’ll be using it on the panel, you’ll need to hunt for bespoke stickers or take measurements and get the right-sized skins. Alternatively, you may trim it to fit the specifications when it comes.

This may all seem a bit extravagant, but it isn’t. Just a simple concept for choosing the correct bag and skin for your laptop; otherwise, you can purchase or buy the wrong one based only on the screen size.

Most Commonly Asked Questions

Before we get to the point, there are a few hot concerns that consumers have been asking for a long time about how to estimate a laptop’s size and other connected issues.

How can you tell the size of a laptop’s screen without measuring it?

This has been a common question for folks who do not want to go to the trouble of measuring a laptop’s size. The laptop’s screen size may be found on the website where you purchased it or on the internal panel of the screen. Also, you don’t need to measure since a quick internet search with the model of your laptop can help you locate the proper size. The most common screen sizes are 11, 13, 15, and 17 inches, with several variations within these sizes. Now, laptop sizes are also between these ranges, or even higher for a laptop with a 17″ screen.

How do you determine the size of a laptop’s screen?

To measure the screen size of a laptop, use the same approach we used to measure the diagonal dimension of the computer. Please do not make the error of measuring it horizontally since this will result in an incorrect measurement. Instead, position the measuring tape or ruler diagonally on the borders of the laptop for accurate measurements.

What is the best way to measure my laptop in centimeters?

In general, computers have been offered a primary screen size rather than a laptop size in inches. To measure in cm directly, you may use a scale or a measuring tape. If you don’t have any of these items and only want the measurement in cm instead of inches. For your convenience, you’ll need to convert it. Because 1 inch equals 2.54 centimeters, a 15-inch laptop would be 15″ x 2.54 centimeters = 38.1 centimeters in another unit. This refers to the overall size of your system rather than the size of your screen.


This is all you need to know about laptop sizes and screen sizes. There is a significant distinction between them that anyone who uses or purchases a laptop or accessories should be aware of. Although it is customary to utilize the laptop screen for various functions, it is insufficient when a bag is required to transport it. Also, determining the size of the laptop, which includes the screen and the side corners and bezels, is not a difficult task. The blog was created specifically to assist other users familiar with the complete procedure in taking precise measurements and putting them to good use when needed.

Furthermore, the same measures that we provided for Apple products also apply to Windows computers. Alternatively, any other laptop, large or small, may be used. Many individuals carry tiny computers in huge backpacks, which look strange and unwieldy. As a result, understanding the laptop’s size is essential.

Related Tags

  • how to measure laptop screen size
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  • laptop length width and height in cm
  • 15-inch laptop dimensions length and width in cm
  • 17-inch laptop dimensions length and width in cm
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