Free library · UX Fundamentals · Principle 132

Fitt’s Law

Fitt's Law explains that the time it takes to click or tap on something depends on two things: how far away it is and how big it is. Simply put, larger and closer buttons or links are quicker and easier to use.

Why It Matters

Why Does Fitt's Law Matter?

  • Easier to Use: Big and nearby buttons make your website or app more straightforward to navigate..
  • Fewer Mistakes: Users are less likely to click the wrong button.
  • Faster Actions: People can complete tasks more quickly.
  • Better Accessibility: Everyone, including those with disabilities, can use your product more easily.

Benefits for Your Business

  • Easier to Use: Big and nearby buttons make your website or app more straightforward to navigate.  
  • Fewer Mistakes: Users are less likely to click the wrong button.  
  • Faster Actions: People can complete tasks more quickly.  
  • Better Accessibility: Everyone, including those with disabilities, can use your product more easily.    

How to Improve

How to Apply Fitt's Law

  • Make Important Buttons Bigger: Ensure key buttons are large enough to click or tap easily.
  • Place Buttons Close to Where Users Look: Position necessary actions where they're easy to see and reach.
  • Optimize for Mobile Users: On phones, place buttons where thumbs can easily tap them.
  • Use Clear Design Cues: Highlight essential elements to draw attention.

Key Takeaway

Summary

By making buttons and interactive elements bigger and placing them closer to where users are focusing, you make your website or app more straightforward to use. This leads to happier users and fewer mistakes and can benefit your business through increased engagement and conversions.