TCtools.christianoliff.comWeb developer tools

Favorites (0)

Favorite a tool to pin it here.

Code Tools▾

Backdrop Filter Generator
CSS Unit Converter
HTML Escape / Unescape
HTML Formatter
JSON Formatter
SQL Formatter
XML Formatter

Color Tools▾

Color Code Converter
Color Contrast Checker

Data Conversion▾

CSV to JSON Converter
EXIF Image Viewer
JSON to CSV Converter
JSON to YAML Converter
YAML to JSON Converter

Encode & Decode▾

Base64 Encode / Decode
JWT Decoder
Number Base Converter
Password Generator
QR Code Generator
SHA Hash Calculator
URL Encode / Decode

Network Tools▾

Subdomain Lookup
Unix Time Converter
URL Parser

Text Tools▾

Line Break Remover
Slug Generator
Text Case Converter
Text Diff Checker
Word Counter

Validation Tools▾

Credit Card Validator
Regex Checker
UUID Generator
UUID Validator

Home
/
Tools
/
CSS Unit Converter

Code ToolsReady

CSS Unit Converter

Add to favorites

Convert CSS length values between px, rem, em, and physical units.

CSS
Converter

© 2026 Christian Oliff. All rights reserved.

Free to use. No sign-up required.

Input

Value

Unit

Root font size (rem)

Element font size (em)

Converted values

Pixels (px): 16px
Root em (rem): 1rem
Em (em): 1em
Points (pt): 12pt
Inches (in): 0.166667in
Centimeters (cm): 0.423333cm
Millimeters (mm): 4.233333mm
Picas (pc): 1pc
Quarter-millimeters (q): 16.933333q