EM to PX Converter

This free online em / px converts CSS em units to pixels and back, based on a given root font size. It runs instantly in your browser with no sign-up required.

Enter your value above and the result updates instantly. This tool is commonly used for responsive web design and translating a design spec into CSS.

Frequently Asked Questions

Is the em / px free to use?

Yes, the em / px on ConverterHub is completely free, with no sign-up or limits.

Does this tool store or send my data anywhere?

No. It converts CSS em units to pixels and back entirely in your browser — nothing is uploaded to a server.