How do width, height and resolution matter, and what's the standard or how to calculate the right resolution for current width and height in order to achieve a well refined image or retina image, or an image that is not pixelated?

I want to make some images that are very good quality like an android icon, a game character, and a wallpaper. But I don't know if there are any standards on deciding the size. References and cheat sheets would be a great help. Thanks in advance :)

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1 Answer 1


Only width and height in pixels matter. Resolution is an metadata instruction for converting pixels to physical units when printing.

  • ...even if you add retina to the mix?
    – Vincent
    Commented Jul 25, 2014 at 9:57
  • 1
    @Bakabaka yes it is a css trick the net optimized pipeline has no place for resolution data, optimizers frequently strip this info off.
    – joojaa
    Commented Jul 25, 2014 at 11:02
  • see related question graphicdesign.stackexchange.com/questions/13777/…
    – joojaa
    Commented Jul 25, 2014 at 11:11

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