CSS Unit Converter

It converts values between CSS units like pixels (px), rem, em, viewport width (vw), viewport height (vh), and points (pt).

Enter your pixel value, set the base font size (default 16px), and get the equivalent rem value instantly. Works for all common CSS units.

Yes, completely free with no limits.

All conversions are done in your browser. No data is transmitted.

The default is 16px, which is the browser default. You can change it to match your project's root font size for accurate rem calculations.