Coming from a video background I’ve always been a little confused why PowerPoint works in inches and centimeters rather than pixels. On the surface PowerPoint seems better suited to print media rather than digital displays like screens and projectors.
When you set up a slide deck PowerPoint asks for dimensions to be set in either inches or centimeters. However you can enter a pixel value followed by “px” and PowerPoint will convert it to either centimeters or inches.
Using this conversion I understand that PowerPoint assumes 0.0104166666666667 inches per pixel or 0.0264583333333333 centimeters per pixel.
Using these values I have created a table of common 16:9 video resolutions and their print equivalents.