CSS Unit Converter for Chrome
Convert between px, rem, em, vw, vh, and pt using the live page’s root font-size and viewport dimensions.
Replaces:
PX to REM Converter
Why Developers Switch to OmniDev
Installing a separate browser extension just for css unit converter bloats Chrome memory, adds permission risk, and clutters your toolbar. OmniDev integrates CSS Unit Converter natively alongside 53 other frontend and QA tools.
Convert between px, rem, em, vw, vh, and pt using the live page’s root font-size and viewport dimensions.
Runs inside an isolated Shadow DOM panel so host page styles never break or leak
Zero background RAM overhead when idle — lazy-loaded on demand in milliseconds
Replaces standalone PX to REM Converter extensions inside a single 54-in-1 toolkit
Try PX ↔ REM / EM / VW / PT right here
Pixel Value (px)
Root Font Size (px)
REM
1.5rem
EM
1.5em
VW (1440px)
1.667vw
Points (PT)
18pt
Frequently Asked Questions — CSS Unit Converter
Is the CSS Unit Converter tool in OmniDev completely free?
Yes. CSS Unit Converter and all 54 tools in OmniDev are 100% free to use with no account signup or paywall.
Does CSS Unit Converter send my webpage data to an external server?
No. CSS Unit Converter runs locally inside your browser tab. OmniDev is architected local-first and never uploads your DOM, storage, or network payloads to a Jambo backend.
Which standalone Chrome extensions does CSS Unit Converter replace?
CSS Unit Converter replaces single-purpose extensions such as PX to REM Converter, saving browser RAM and reducing extension permission sprawl.
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