REM to PX Converter

Convert rem to pixels using your document base font size.

Conversion values

Use the actual root font size from your CSS rather than assuming every page uses 16px.

Conversion result

Pixel value24px

1.5rem × 16px = 24px

About the REM to PX Converter

Estimate the pixel equivalent of a rem measurement at a chosen root font size.

How to use it

  1. Enter the rem value.
  2. Enter the current root base font size in pixels.
  3. Copy the resulting pixel value.

Formula

pixels = rem × base font size.

Example

1.5rem multiplied by a 16px base equals 24px.

Notes

This arithmetic estimate does not override responsive CSS, zoom or user font preferences.