How to Convert width from percentage to pixels

 Formula to calculate width in Pixels from percentage.

var pixels = parentWidth*(percents/100);

Example: 

Let suppose Outer container having width 420px and Outer Container has a table having width = 100%

Now you want to assign width of td's in pixels so use this formula to calculate.

  Pixels = 420*(16 /100); 

 <div style='width:420px;'> 

      <table style='width:100%;'> 

           <tr> 

              <td></td>

              <td></td>

              <td></td>

              <td></td>

           </tr>

      </table>

  </div>