Enter pixels
Type the px value.
Code & Data Tool
px to rem Converter
Convert pixels to rem using an optional base font size.
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About this tool
What is px to rem Converter?
px to rem Converter converts pixel values to rem units using a base font size you can set, which helps when building scalable CSS.
Useful when you need to
- Convert design sizes into rem for CSS
- Check sizes with a non-default base font
- Learn how rem scales
How to use
How to use px to rem Converter
01 02 Set the base
Use your root font size, commonly 16px.
03 Convert
Read the rem result.
04 Copy
Use it in your stylesheet.
Tips
Get better results
- Rem is relative to the root font size, so the base you choose changes the result.
- A 16px base means 1rem = 16px.
FAQ
Frequently asked questions
What base size should I use?
Use the root font size of your project. Browsers default to 16px.
Is it private?
Yes.
Why use rem?
It scales with user font settings, which improves accessibility.
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