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Are laptops measured diagonally? [Helpful Tips]

Do you ever find yourself in the electronics section and wondering, “are laptops measured diagonally?”

It’s a common question many shoppers have as they browse the latest gadgets and gizmos. Maybe you’re looking for an upgrade to your current laptop, or perhaps you want to replace an older model that has lost its luster.

To help make your decision easier, let’s take a closer look at how laptops are sized. We’ll discuss the most common measurements used today, compare them to traditional television sizes, and provide tips on selecting the right-sized device for all of your needs.

With this information in hand, you’ll be well-equipped to find just what you’re looking for when it comes time to purchase that new laptop.

Quick Answer: Yes, Laptops are measured diagonally from the top left to bottom right corner of the screen. This measurement is in inches and ranges between 11 and 17 inches.

Are laptops measured diagonally?

Yes, laptops are measured diagonally. Diagonal measurements are used to signify the overall size of a laptop’s display.

This measurement is taken from one corner of the screen to its opposite corner, providing an accurate representation of the laptop’s actual size. Diagonal measurements are typically provided in inches and can range anywhere from 11 to 17 inches for most laptops.

The larger the diagonal measurement, the larger the laptop’s display size. Beyond simply estimating a laptop’s overall size, diagonal measurements can also be used to compare two different laptops side-by-side in relation to each other.

Comparing two or more laptops’ diagonal measurements can give you an idea of how much bigger or smaller one model might be compared to another when considering their physical sizes for everyday usage and portability.

What are the dimensions of a laptop?

The dimensions of a laptop will vary depending on the model and screen size.

➙ 13-inch laptops are typically 11.5 inches wide, 8.3 inches deep, and 0.7 to 1.2 inches high.

➙ 15-inch laptops are usually 13.3 inches wide, 9.3 inches deep, and 0.8 to 1.4 inches high .

➙ 17-inch laptops can be up to 15.2 inches wide, 10.5 inches deep, and 1.0 to 1.8 inches high.

It’s important to note that these measurements are approximate and will vary slightly based on the specific model of laptop you’re considering.

How can I find out my laptop screen size without measuring?

One way to find out your laptop screen size without measuring is to use the “Display” settings on your computer.

This can usually be found in the “Control Panel” or “System Preferences.” Once you open the Display settings, you will likely see a list of different resolution options.

The resolution is typically listed in terms of width x height, so you can simply look at the numbers next to each option to find out your screen size.

For example, if the resolution next to one of the options is 1366×768, then your screen size is 1366 pixels wide and 768 pixels tall.

Another way to find out your screen size is to look up your laptop model online and find the specifications. Many manufacturers list the screen size in the product specs.

How can I measure my laptop screen size?

Measuring your laptop screen size is important for buying compatible accessories, such as a laptop sleeve or monitor stand.

It can also be important if you’re looking for a second-hand replacement part or a new external monitor.

Luckily, measuring your laptop’s screen size is easy and straightforward. Read on to learn the simple steps you need to take to accurately measure your laptop screen size.

Step 1: Find the Diagonal Length

When it comes to accurately measuring the size of your laptop screen, the first step is finding its diagonal length.

To do this, simply grab a ruler or measure tape and determine the distance from one corner of your display area to its opposite corner – simple as that.

This will give you an exact value for your laptop’s display in inches.

Step 2: Calculate Aspect Ratio

The next step is calculating the aspect ratio of your laptop’s display area.

The aspect ratio tells you how wide and tall your laptop’s display area is in comparison with its length.

To calculate this, divide both sides of the display area by their shortest side (the length). For example, if one side was 12 inches long and another was 8 inches long, then 8 would be divided by 8 which would equal 1.

So, in this example, the aspect ratio would be 12:8 or 1:1 .5.

Step 3: Determine Width/Height Ratio

You can now use this information to calculate what type of shape your laptop’s display has. Divide both sides of the display by their longest side (the diagonal length).

So, using our previous example where one side was 12 inches long and another was 8 inches long with a diagonal length of 13 inches, we’d divide both sides by 13 which gives us 0.923076923 (12) and 0.615384615 (8).

This means that our final width/height ratio is 12x8x13 or 0.923076923 x 0.615384615 x 13—or 14in x 9in x 13in.


When it comes to laptops, there is a lot of confusion regarding their measurements.

Many people assume that there must be some industry standard when measuring the diagonal length of laptops, however this is not the case.

Different manufacturers actually measure the diagonal screen size in different ways, so what one company may call a 13” laptop may actually be closer to 14” when measured by another.

If a laptop’s exact size is important when making a purchase decision it’s best to compare the specifications side-by-side with other offerings in order to get an accurate picture of the size difference.