Question 1

How do I convert REM to PX?

Accepted Answer

Multiply the REM value by the base font size (default 16px). For example, 2rem × 16 = 32px.

Question 2

What is the default base font size?

Accepted Answer

The default base font size in most browsers is 16px. This tool uses 16px as the default but you can change it.

Question 3

Why use REM instead of PX?

Accepted Answer

REM units are relative to the root font size, making your design more accessible and scalable. Users who change their browser's default font size will see your layout scale proportionally.

Question 4

Can I batch convert multiple values?

Accepted Answer

Yes. Use the reference table below the converter to see common REM to PX conversions at a glance.