Development Tools

REM ↔ PX Converter

Convert rem and px using your root font size — both directions, live.

Batch ready

The Apex Toolz promise

No Login

100% Free

No Upload

No Tracking

Browser-Based

How to use REM ↔ PX

  1. 1Enter rem or px values.
  2. 2Set your root font size (default 16px).
  3. 3Copy converted values for CSS.