Tools

8 all / 82+

Audit
Back to Converters

PX to REM

Perform fast and accurate conversions between various units.

px
px
rem

How to use?

1
1

Enter the base font size (usually 16px).

2
2

Type a value in either the PX or REM field.

3
3

See the converted value calculated automatically in the other field.

Frequently Asked Questions

What is REM?

REM is a relative unit based on the root element (html) font size.

Why use REM instead of PX?

REM enables more flexible and accessible layouts because sizes scale with the root font size.