I have a project wherein I need to create a banner with a size of 205cm x 445cm. When creating a canvas for this size do I need to convert it in inches first then set the resolution to 300 pixels/inch or is it okay to just convert it directly to pixels?

When converted to inches:

455cm = 175.197 inches
205cm = 80.7087 inches

When I view the image size of this canvas I get 52559 pixels width and 24213 pixels height.

When coverted directly to pixels

205cm = 7748 pixels
445 = 16818 pixels

What canvas size do I follow when creating project like this?

  • Pixels don't have an actual size, their size is relative to the screen they are being viewed on.
    – Welz
    Commented May 28, 2018 at 2:04
  • This project will be printed once done. When i use inches and set the resolution to 300 my computer is having a hard time because the file is too big. Does it affect the quality of the banner when i use the converted pixels instead of the inches? Commented May 28, 2018 at 2:15
  • I think this question has been asked before - see What resolution should a large format artwork for print be?
    – Billy Kerr
    Commented May 28, 2018 at 7:47

2 Answers 2


Merely set up your document with centimeters....

enter image description here

Note you can leave the Resolution field set to Pixels/Inch and input 300. Photoshop will do the calculation for you.

You certainly, don't need to convert anything to pixels.


The artwork should be designed based off the resolution that it will be printed.

It comes down to what the resolution will be when it's printed (this can include web "printing")

You should find out what resolution it will be printed at and design the artwork in that size.

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