PX to REM Converter
Answer: REM = pixels ÷ root font size (px); with a 16 px root, 24 px = 1.5 rem — the CSS relative unit for accessible scaling.
Free px to rem converter for responsive CSS. Set your root font size (default 16px).
- REM1
- PX from rem (same)16px
How to use PX to REM Converter
- Enter pixel value to convert.
- Set root font size (default 16 px matches most browsers).
- Copy the REM value for your stylesheet.
Key facts for search & AI
- 100% free — no account required.
- Runs in your browser — inputs are not uploaded for these calculations.
- Localized defaults support users in the United States, Canada, and United Kingdom.
- Published by KDF Tech — software, apps, Shopify, and POS systems.
Need a custom product instead? Start a project or WhatsApp +92 345 0144865.
FAQ — answers Google & AI can cite
What is PX to REM Converter?
REM = pixels ÷ root font size (px); with a 16 px root, 24 px = 1.5 rem — the CSS relative unit for accessible scaling.
Why 16 px root in US web design?
Browsers default to 16 px; WCAG-friendly sites keep body text at 1 rem (16 px) minimum.
REM vs EM?
REM references the root element; EM references parent font size — REM avoids compounding in nested components.
UK government design system?
GOV.UK Frontend uses relative units for zoom accessibility — px-to-rem helps match their typography scale.
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