📐 CSS Unit Converter

Convert between px, rem, em, and other CSS units.

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📘 How to Use This Tool

Convert between px, rem, em, and other common CSS units.

  1. Enter the value you want to convert.
  2. Select the unit you're converting from (e.g. px).
  3. Select the unit you're converting to (e.g. rem).
  4. If converting to/from rem or em, make sure the base font size used matches your project's actual root font size for an accurate result.

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