If you design for standard desktop viewing, for instance, and the same website is accessed on a smartphone, you'll notice that the whole site is still visible but the alignment of the content is all over the place. When designing a website, it must be kept in mind that the site may be viewed on different devices. How Does Aspect Ratio Relate to Web Design? The Effective Use of Aspect Ratio in Web Design Projects How Does Aspect Ratio Relate to Web Design In our first example, if an image has an aspect ratio of 18:9, only 16 units of its width will be displayed, whatever those units might represent. If not, a part of its width may not be displayed when the height is adjusted to fit, and vice versa. The important thing to remember is that any image or film displayed on a screen having a particular ratio must match that ratio. In this case, it's 9, which brings the ratio to 16:9. However, to avoid the use of decimals, both numbers are multiplied by a number that will bring both sides of the ratio to a whole number. In that case, what about something like 16:9, which is the aspect ratio of the HDTV format? Why is the height not considered to be 1 in this instance? The reason is that if you assign the number 1 to the height for this particular aspect ratio, the width will then have to be represented in decimals in this case, 1.78:1, which is another way to express this aspect ratio. A 1 1 aspect ratio or 1:1 aspect ratio is essentially a square aspect ratio, which is typical on some social media sites like Instagram. For instance, if the width is double the height, the aspect ratio would be 2:1. Interestingly, it is the height that's always considered to be 1. The simplest answer to the question, 'what is aspect ratio?' is: it is the ratio between the width of a display screen to its height.

You've probably heard the term ' aspect ratio' in relation to screen sizes for TVs, mobile devices, and other screen types.

Aspect ratio calculator app