How Are Laptops Measured? (A Guide For Beginners)

Imagine that the bag or sleeve you purchased does not have room for your laptop. Isn’t that a terrible feeling to have? You spent money and waited for the proper size, but you never received it. 

It is always necessary to measure your laptop before purchasing a laptop bag. 

These measurements help determine the laptop’s overall size, which is extremely useful when looking for a bag or checking if it will fit on a school or college desk, among other reasons. They ensure that it won’t cause any problems for you.

When it comes to measuring a laptop, the first step is to figure out the proper laptop screen size so that you can ensure you are spending enough on a bag that can hold a full day’s worth of work.

However, it is not as simple as it seems.

But don’t worry, in this article, I will be providing a simple guide on how laptops are measured so that you can make better decisions.

Measuring laptop size for bags or sleeves:

Knowing your laptop’s brand, and size, and how to measure it is extremely important since it will enable you to make the best decision possible regarding the sleeve or bag you should use for it.

Screen size:

How to Measure the Screen Size Of A Laptop

You need to take note of a few factors while measuring laptops. One important factor is the screen size, which is often measured in inches.

There are several ways to find out the actual size of your screen. LCDs are measured diagonally, and usually, only the viewable area is counted.

Simply get a measuring tape and measure diagonally from one corner of the screen to the other corner to determine the size of the screen. The size will be displayed in inches, which is the standard unit of measurement for laptops. 

Now check to see if the bag or a sleeve you choose can fit your laptop and accessories based on the size of the screen. Make sure there is adequate room for a keyboard, mouse, documents, and other equipment.

It is better to take laptop screen measurements before measuring the overall size of the laptop. This will help you to assess if your current bag can accommodate your laptop.

For instance, you bought a 15.6 laptop and you now want to understand what are the dimensions of this 15.6-inch laptop.
So here is the answer:

15.6-inch laptop typically has dimensions around 14 to 15 inches in width, 9 to 10 inches in depth, and 0.7 to 1.5 inches in height. These dimensions can vary slightly depending on the specific model and design of the laptop.

For instance, here are the dimensions of some popular brand:

How to identify your laptop screen size without measuring it?

You can still determine the size of the laptop even if you don’t know how to measure it. It is really easy and simple to understand. For that, you need a model number.

The quickest way to find the exact size of your LCD is to remove it from the laptop and look at the model number sticker on the back; virtually all LCD model numbers contain the physical size of the LCD in inches. 0

The first three digits after the three letters in the LCD model number ‘LTN156AT01’ indicate the screen size, which is 15.6 inches diagonally in this case. You can even find the size on some reputable websites.


how to measure height of a laptop

To measure the height, close the laptop screen. 

  • Take a centimeter-marked ruler or measuring tape with you.
  • Set the laptop down on a level surface, such as a desk or table.
  • Make sure to close the laptop screen.
  • Now place the ruler or measuring tape next to the laptop in an upright position.
  • Align the bottom edge of the laptop with the tape’s or ruler’s beginning point.
  • Hold the ruler or tape firmly but gently to maintain its position.
  • Check the measurement where the laptop’s top edge lines up with the ruler or tape.
  • This measurement shows the height of the laptop in centimeters.

You should also keep in mind the thickness of your laptop because it may affect how well it fits. This measurement might help you decide if the laptop will fit comfortably in shared spaces like cabinets and shelves. Ensure that your laptop can easily fit into those spaces without any hassle. 

For measuring the thickness of the laptop, begin measuring with a tape measure at the base of one of the sides. 

Measure how the thickest portion of your laptop slopes when closed. The closed screen’s top is where you should measure. Laptops typically have a height of two inches or less.

For instance, let’s say the laptop is 1.5 inches tall. It will give you a height of 3.81 cm when you multiply it by 2.54.

Another factor that can be measured is the weight of the laptop. This is especially important when looking for a backpack that will not put strain on your shoulders. I assume that nobody wants to carry around a heavy backpack all day. Knowing the weight of the laptop might, therefore, help you select a bag that is easy to carry.

The weight of the laptop may also be estimated based on its size.


how to measure width of a laptop
  • Star measuring with the tape at either the front left or right corner
  • The front is the easiest to measure because there aren’t any exposed ports
  • Take an exact measurement from one front corner of the laptop to the other. Be sure to measure all rounded edges all the way to the end


  • Start your measurements from the back corner’s left or right side
  • Take a measurement that includes the rounded borders and extend the tape all the way to the right corner. 
  • If necessary, change the measurements’ units to centimeters

Centimeters To Inches Conversion

It is very simple to convert a laptop screen measurement from centimeters to inches.

1 in = 2.54 cm

For instance, if your screen is 34 CM in size, you must divide that number by 2.54 CM to get inches.

1 inch is equal to 2.54 centimeters, so a 34 CM screen size is equal to 13.3 inches.

There are several reasons why laptop measurements are important. First, by being aware of the laptop’s size you can easily and properly fit laptops in backpacks, cases, or sleeves for better protection. A proper fit will offer the greatest defense against scratches, bumps, and other damages.

The measurement of laptops is necessary for workplace organization as well. People take measurements before purchasing a desk to ensure that there is plenty of space for a laptop and other necessary equipment like a mouse, keyboard, or notepad.

It is not as tough as it may seem to measure your laptop. You may finish in little time by simply following these few easy steps.