title: find screen dimensions in inches not pixels using javascript
body: <p>I was reading many questions on SO regarding best ways to detect screen size in pixels which is ultimately dependant on resolution to find the actual screen size.</p>
  
  <p>I know some mobile devices have small screen (say 4inch) yet the resolution is high. While some devices r having large screen (say 7inch tab) yet the resolution is low.</p>
  
  <p>So when you want to display your page to the user,  you really need the screen size in inches or centimetres to give the best view comforting the eyes.</p>
  
  <p>So I ask:
  Is there away to find out screen size of the device in inches not pixels  ?
  I know it can be, provided that we know the resolution! !Bec we can calculate the size from screen width and height </p>
  
  <p>Appreciating any idea!</p>