Input

Input Values

Enter the pixel value you want to convert to rem and em units
The base font size used for calculations. Browser default is typically 16px.

Output

Converted Values

Converted REM value relative to root element font size
Converted EM value relative to parent element font size

Tips & Instructions

• REM: Relative to the root element's font size (usually 16px by default)

• EM: Relative to the parent element's font size

• For this tool, both REM and EM calculations use the same base font size for direct comparison

• Common base font sizes: 16px (browser default), 10px (easier calculations), 14px, 18px

• Use REM for consistent sizing across your site, EM for component-relative sizing

• Formula: rem/em = px ÷ base font size