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PX & REM Converter

Convert CSS pixel and root-relative REM lengths using a configurable root size.

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About this tool

Use px & rem converter without uploading files

Convert CSS pixel and root-relative REM lengths using a configurable root size. PX & REM Converter runs in the current browser session, giving you a direct result without sending the source to a Filemazing processing server.

Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.

Three steps
  1. Enter the values and units requested by PX & REM Converter.
  2. Check that each source and target unit describes the intended measurement.
  3. Calculate the result, then copy the value you need.
Useful for

Common convert px & rem tasks

  • Using convert px & rem without an upload queue
  • Building consistent interface styles
  • Checking design calculations
Practical details

What to know before you start

Accepted input

Values entered directly into the PX & REM Converter form

Created output

A calculated convert px & rem result

Tips and limitations
  • Browser rendering can vary slightly across operating systems and display settings.
  • Test generated CSS in the actual layout and supported browser range.
  • Review the PX & REM Converter result before using it in an important workflow.