PX / REM Converter
Convert pixels to rem and rem to pixels using an explicit root font size.
Workspace
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How to use this tool
Set the root size, enter a pixel or rem value and read the result in the other unit.
What to know
One rem equals the computed font size of the root element. The common 16px default can be changed by the site or visitor.
Frequently asked questions
How do I use PX / REM Converter?
Set the root size, enter a pixel or rem value and read the result in the other unit.
What should I check before using the result?
One rem equals the computed font size of the root element. The common 16px default can be changed by the site or visitor.
Is an account required?
No. This tool is free and the calculation takes place in your browser.