I have to create a powerpoint poster. The following guidelines are given:

enter image description here

Now I am very confused. In powerpoint I see the options to set the size of the slide:

enter image description here

But what about format and pixels? After some googling I realized that one can convert pixels to cm. I tried using this converter: http://www.unitconversion.org/typography/pixels-x-to-centimeters-conversion.html

But the dimensions in pixels seem not to be consistent with the dimensions in size. What am I misinterpreting?

  • 1
    Pixels do not have a size. So there is no pixel to cm conversion.
    – joojaa
    Apr 29, 2018 at 16:03
  • Oh. Thanks. I am very newbie in this. Find it very weird that there are so many websites converting from pixels to cm then. So is there anyway I can ensure in powerpoint that I meet the pixel requirement?\
    – phdstudent
    Apr 29, 2018 at 16:05
  • Well i am not. See most people failed to understand units in school. All they understood is: This is super important, but nothing furter. I have to deal with this semi daily. A pixel is a sample, so ask yourself does the question "How many samples are there in a cm?" make sense? Anyway, They are not asking you to make the document 1080x1920 they are asking you to make it tge same shape so that they can put it on a tv screen.
    – joojaa
    Apr 29, 2018 at 16:11
  • Okay got what a pixel is :) Just not sure what you mean by "making it tge" . They are indeed going to put it on a tv
    – phdstudent
    Apr 29, 2018 at 16:18
  • In this case, px to cm, the tool you linked it is totally deceiving and misleading. Do not use that. It probably has sense in other conversions. Not in this one
    – Rafael
    Apr 29, 2018 at 16:23

1 Answer 1


You can not directly convert Pixels to cm on PowerPoint.

Powerpoint is not a graphic design software. Images that you drop inside are automatically resampled so you have no control over what pixels behave inside it.

9:16 is only a relationship, it has no direct correlation to Full HD (1920x1080)

So saying that 9:16 correspond to 1080x1920 is totally inaccurate.

Powerpoint is a mostly a vector based program, so if you are making a poster on it, (which can be done, but is not ideal) simply go for a physical unit in cm.

In my opinion, use the biggest one that you can fit in your final print.

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