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Pixel to REM Calculator
Convert pixel values to rem units based on the base font size.
px
Default browser base font size is 16px
px
rem
About Pixel to REM Conversion
REM (Root EM) is a unit of measurement in CSS that represents the font size of the root element (typically the html element). Converting pixels to REM helps create more scalable and accessible designs that adapt to user preferences.
Why Use REM?
- Better accessibility for users who adjust their browser's font size
- More consistent scaling across different screen sizes
- Easier to maintain and update designs
- Respects user preferences for text size
- Simplifies responsive design implementation
How to Use REM
- Set the base font size on the html element (e.g.,
html { font-size: 16px; }) - Use rem for font sizes, margins, paddings, and other measurements
- 1rem equals the font size of the root element (usually 16px by default)
- For responsive designs, adjust the root font size with media queries
- Formula:
rem = pixels ÷ base font size
Pro Tip: For better accessibility, consider using a combination of rem for font sizes and em for spacing related to those fonts. This ensures that when text is resized, the surrounding space scales proportionally.