Question 1

What is the difference between PX, EM, and REM?

Accepted Answer

PX (pixels) is a fixed absolute unit of measurement. EM is a relative unit based on the font size of the parent element. REM (root EM) is a relative unit based on the font size of the root HTML element (usually 16px by default).

Question 2

How do you convert pixels (PX) to REM?

Accepted Answer

To convert pixels to REM, divide the pixel value by the base font size of the root HTML element. For example, if the root font size is 16px: 24px / 16px = 1.5rem.

Question 3

Why should I use REM instead of PX in web design?

Accepted Answer

Using relative units like REM improves web accessibility and responsive design. If a user increases the default font size in their browser settings, a site using REM will scale all text proportionally, whereas a site using PX will remain fixed and may become unreadable.

Typography Converter

Frequently Asked Questions

What is the difference between PX, EM, and REM?

How do you convert pixels (PX) to REM?

Why should I use REM instead of PX in web design?