rem to px converter
Convert rem to px for any base font size. The output updates as you type, with a reference table covering common values.
Try 16, 24, 1.5
Updates as you type
Default 16px — change to match your project.
How to use this tool
- 1Enter the rem value you want to convert.
- 2Set your project’s base font size (defaults to 16px).
- 3Read the px equivalent and copy it for your stylesheet.
About this tool
rem is relative to the document root font size, handy for scalable, accessible designs. Sometimes you need the underlying pixel value for design-tool handoffs or pixel-perfect specs. This converter assumes the standard 16px root.
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Frequently asked questions
Short answers to what people ask most.
What base font size does this converter use?
Why use px instead of rem?
Is the conversion exact?
Does this work offline?
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