Convert Px To Rem

px and rem Explained

What is px?

• px (Pixels):
  • A px is a unit that represents a single pixel on the screen. It's an absolute unit, which means it stays the same regardless of the root or parent element's size.
  • It is commonly used for precise control of an element's dimensions but can cause scaling issues in responsive design.

What is rem?

• rem (Root Em):
  • The rem unit is relative to the root font size of the HTML document, which is typically set to 16px by default.
  • 1 rem = Root font size. If the root font size is 16px, then 1rem = 16px.
  • rem units are commonly used to create scalable and more maintainable layouts.

px to rem Conversion

To convert px to rem, use the following formula: rem = px / root font size

For example:

• If the root font size is 16px:
  • 8px = 8px / 16px = 0.5rem
  • 16px = 16px / 16px = 1rem
  • 32px = 32px / 16px = 2rem

Conversion Table

px Value	Equivalent rem Value (root = 16px)
4px	0.25rem
8px	0.5rem
12px	0.75rem
16px	1rem
24px	1.5rem
32px	2rem
48px	3rem
64px	4rem

Why Use rem?

• Scalability: rem units allow for better scalability and are more accessible for users who need to adjust font sizes.
• Consistency: Using rem makes it easier to maintain a consistent design when changing the root font size for different viewports.