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Free toolAll size converters

REM to PX converter.

See what a rem value means in pixels at the root font size you use, to check CSS against a design. Type in either field.

REM to Pixels at 16 px
rempx
0.125rem2px
0.25rem4px
0.5rem8px
0.75rem12px
0.875rem14px
1rem16px
1.125rem18px
1.25rem20px
1.5rem24px
1.75rem28px
2rem32px
2.5rem40px
3rem48px
3.5rem56px
4rem64px
5rem80px
6rem96px

Free tool, no warranty, no liability. The result is produced automatically by a free tool from transjt.ai, nothing more. It can be incomplete or wrong. transjt.ai gives no warranty and accepts no liability for decisions or changes based on it; check every result before you use it.

How it works

REM to PX in three steps.

  1. 01

    Set the root font size

    16 px unless your site changes the font size of html.

  2. 02

    Type the rem value

    The pixels follow as you type; it works the other way round too.

  3. 03

    Copy the value

    Such as 24px, ready to paste.

  4. Try it with your build.

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FAQ

Questions and answers.

What people ask before they convert.

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  • Multiply the rem value by the root font size: at 16 px, 1.5rem is 1.5 × 16 = 24 px.

  • Only while the root font size is the browser default. A site can change it in its CSS, and readers can change it in their browser settings; rem follows both.

  • rem is relative to the root element’s font size, the same everywhere on the page. em is relative to the font size of the element’s parent, so it changes with nesting. EM to PX converter

  • Yes, with no sign-up and no limits.

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