CSS Unit Converter (px, rem, em, %)
CSS Unit Converter (px, rem, em, %) is a free online CSS Tools tool that convert between px, rem, em, pt and % with a configurable root size instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
Description
Convert between px, rem, em, pt and % with a configurable root size.
- Because everything is computed client-side, CSS Unit Converter (px, rem, em, %) is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using CSS Unit Converter (px, rem, em, %) takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Examples
These ready-made examples show typical inputs and the exact output CSS Unit Converter (px, rem, em, %) produces for them.
16
px → rem at 16px root.
Use cases
Common situations where CSS Unit Converter (px, rem, em, %) helps:
- Convert between px, rem, em, pt and % with a configurable root size.
- Because everything is computed client-side, CSS Unit Converter (px, rem, em, %) is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is CSS Unit Converter (px, rem, em, %)?
CSS Unit Converter (px, rem, em, %) convert between px, rem, em, pt and % with a configurable root size. It runs entirely in your browser, so your data stays private.
Is CSS Unit Converter (px, rem, em, %) free to use?
Yes. CSS Unit Converter (px, rem, em, %) is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.