Tools / Pixels to Ems Conversion

Pixels to Ems Conversion

Convert pixels to ems and ems to pixels based on base font size. Free px to em calculator for responsive CSS.

Frequently asked questions

Why use em instead of px?

Ems scale relative to the parent font size, making layouts more flexible and accessible when users change browser text size.

What is the base font size?

Browsers default to 16px. Enter your project's base size to get accurate em conversions.

Can I convert em back to pixels?

Yes. Enter either value and the tool calculates the equivalent in the other unit.

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