Developer

CSS Unit Converter (px, rem, pt)

Convert CSS sizes between px, rem, em, pt, in and cm.

Developer

Local only

Values

Root font size (px)

Everything stays in your browser

Your text is processed on your device — nothing is uploaded to a server.

How it works

Uses CSS's fixed ratios: 1in = 96px = 72pt = 2.54cm. rem/em depend on the root size you set.

Good to know

How do I use it?

Enter your values, adjust the options and press “Convert”. Check the result, then copy or download it.

How does it work?

Uses CSS's fixed ratios: 1in = 96px = 72pt = 2.54cm. rem/em depend on the root size you set.

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.