Miller’s Law can be seen when we visit a website or access an application. While there the user will be presented with lots of information on the page. As a result, we must try to learn to operate the website that we are aiming for. From navigation, layout, or slider. Everything is set by the designer so that users are not burdened by the amount of information they have to digest. Therefore, as designers, we must try to arrange and accommodate so that users are easy to use or digest information available on our products.

The average person can only store or process as much as 7 information while they work.

The Key Key of Miller’s Law is

Miller's Law UI/UX
Heysalsal – Miller’s Law
  • Try the content in each group only has 5-9 objects
  • Very useful for people who first access our website.
  • A close example is the application of cell phone numbers which in the group uses 4 digits.

Ways to use Miller’s Law well.

Way to Use Miller Law
Heysalsal – Miller’s Law
  1. Avoid the use of elements that are not useful

Almost the same as Hick’s law that uses the Keep it simple and stupid method or in Miller’s law you could say a little better. Any element that does not help the user in getting information should be avoided because it will affect the cognitive load they have.

2. Use general Flow

Using work flow on our website will make it easy for users to understand information. This is because users are used to the flow that is owned by other websites.

3. Avoiding lots of Navigation

Try to make navigation that is owned by a website that is not more than 7 by grouping the navigation.

4. Readable and clear.

Fitts’ law also helps us reduce the cognitive burden that is the main key to Miller’s law. Making navigation designs that are legible and clear will help users to get information easily.


By implementing this law on the design page that we create will reduce the time users understand the information which they need. It will also help other principles such as Fitts’ Law in the placed navigation position and Hick’s Law which is useful in grouping information.


Miller’s Law, Chunking, and the Capacity of Working Memory
Design Principles for Reducing Cognitive Load