Size in mm of website mock up using InDesign
I want to create my website mock up using InDesign. Based on a finished website resolution of 1024 x 768 what size should I create my pages in InDesign (in mm).
Why? Simply input 1024px for width and 768px for height. Indesign (Or any Adobe app) will accept whatever measurement you input. You can input 3", 3 in, 3cm, 3px, 3p0, 3mm... they will all be accepted by the dimension fields and then converted to whatever default dimension the rulers are set to. You don't need mm.
But if you really want mm...
1024px x 768px = 361.244mm x 270.933mm
Be aware a pixel is not a unit of measurement, so the conversion is essentially based on the assumption that 1 pixel = 1 point. However, in reality pixels have no set width or heights.
Indesign is really a poor choice of tool in my opinion for web site layout. You'd be better served by using Illustrator or Photoshop.