Pixel to Percent Converter

Just a little tool to help you convert fixed pixel widths to percentages. Useful if you're given desktop-sized mockups but the site needs to be responsive.

  1. Give it your pixel-width columns
  2. Press convert and get precentage widths
  3. Be all responsive and enjoy a better life

Note: There's a well documented rounding bug in JavaScript that means the total of all percentages might be slightly off, typically by something like 0.00001%. Don't worry, you won't see it on your site, but it's worth you knowing.