EM to Viewport Height Converter

Convert EM to viewport height (VH), suitable for responsive web design

What are EM and Viewport Height?

EM is a relative unit based on the font size of the parent element. Viewport height (VH) is a percentage unit relative to the viewport height, where 1 VH equals 1% of the viewport height.

Usage Instructions

  1. Set the parent element's font size (default is 16px)
  2. Input the EM value to convert
  3. Click the "Convert" button or press Enter to get the result
  4. Use the "Copy" button to copy the conversion result
px
em
0 vh

Formula: vh = (em × parent element font size) ÷ (viewport height) × 100

Common conversion examples

  • 1em = 6.25vh (when the parent element's font size is 16px and the viewport height is 100px)
  • 2em = 12.5vh
  • 0.5em = 3.125vh
  • 1.5em = 9.375vh