Aspect Ratio Calculator

This aspect ratio calculator (also very handy as a screen size calculator) will answer all of your questions regarding what aspect ratio is and how to use it. In brief, aspect ratio and screen size are two essential, quick, and comfortable measures used when you want to resize your images or videos to adapt them to the requirements of your project (along with PPI, pixels per inch).

Keep reading to learn:

• The definition of aspect ratio is;
• How to calculate aspect ratio;
• What is screen size;
• How to calculate screen size; and
• How to calculate 16:9 aspect ratio.

Aspect ratio is a proportional relationship between an image's width and height. It is usually written with two numbers and a colon between them—for example, 2:1. The first number represents the width, while the second represents the height. This means that the width of the image is twice its height. It's a very useful concept for resizing photos or videos for your blog or social media account.

Aspect ratio can also be applied to movies, cameras, computer screens, televisions, social media, and website ads. Moreover, since the aspect ratio definition is a fraction between the height and width, you can reduce it to the smallest usable ratio, applying it to several devices.

As you can imagine, the aspect ratio can be a crucial feature and a challenge for designers and webmasters since it affects how a specific design looks across different devices.

The aspect ratio has implications for the content application in responsive design, the user experience on different devices, the technical limitations of platforms and devices, and brand consistency in websites, documents, or platforms.

Applying the aspect ratio calculator is very easy. You need to divide the original height by the original width and then multiply this number by the new width to get the new height. These steps will give you the correct height for your edited image.

• Take your original height. In our example, it will be 1200 pixels.
• Take your original width. Our image has a width of 1600 pixels.
• Divide the height by the width, e.g., 1200 / 1600 = 0.75

This is the aspect ratio expressed as a decimal.

It is also possible to find the aspect ratio based on the resolution of your monitor. For instance, suppose that your computer monitor has a resolution of 2560 pixels x 1440 pixels. Then, the aspect ratio is going to be given as:

AR = 2560/1440 = (16 × 160)/(9 × 160) = 16/9

Therefore, we obtain the famous 16:9 aspect ratio. Our aspect ratio calculator allows you to verify this result instantly.

If you are interested in ratios, you can also check out our proportion calculator and our golden ratio calculator

Our aspect ratio calculator makes it easy to resize your image. Many webmasters use it to ensure consistency when resizing media elements across different screen sizes.

Screen size detects the physical dimensions of your display in inches and indicates the number of pixels that can be displayed on your computer's screen. Calculating screen size is essential for all webmasters.

Below is a list of typical computer monitors and video screen resolutions, with their respective aspect ratios:

In order to find the screen size, you can either calculate it on your own or use our calculator. Read the next section to learn how.

When calculating screen size, the first thing you need to do is choose your aspect ratio. Then, you must measure either width or height. It is enough to give one of them, and the rest will be calculated automatically in your preferred units.

Based on the aspect ratio definition, you can determine if your screen is in a landscape or portrait configuration. If the width is larger than the height, then the screen is in a landscape configuration. However, if the height measurement is larger than the width, the screen is in a portrait configuration.

Follow these steps to compute your screen size:

1. Set up your aspect ratio:
   Width : Height
   Say 5:4
2. Give one of the measures: width or height:
   Height: 8
3. Choose your preferred units: Say inches:
4. If 4 units = 8 inches
   1 unit = 2 inches
5. As such, 5 units = 5 × 2 = 10 inches