PX ⇄ REM converter
CSS units at any root size
Convert CSS sizes between px, rem, em, pt and percent at any root font size. Check what 18px is in rem — or the other way round — without doing the division in your head.
How it works
- Open the tool and add your file (or paste your text).
- Adjust the options — everything previews instantly.
- Download the result. Done.
Private by design
PX ⇄ REM converter runs 100% in your browser. Your files are never uploaded to a server, never stored, and never seen by anyone — close the tab and nothing remains.
Free, no limits
PX ⇄ REM converter has no account, no watermarks and no daily caps. If you also need full design tools, the Ijodly editor is one click away.
Frequently asked questions
Is PX ⇄ REM converter free to use?
Yes — PX ⇄ REM converter is completely free. There is no account to create, no watermark on your results and no daily limits.
Are my files uploaded when I use PX ⇄ REM converter?
No. PX ⇄ REM converter runs entirely in your browser. Your files never leave your device and nothing is stored on a server — close the tab and nothing remains.
Do I need to install anything or sign up?
Neither. Open the page, use PX ⇄ REM converter straight away and download your result. No install, no signup.