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Pixels to CM

Pixels to CM in PowerPoint

Convert pixels to centimeters for Microsoft PowerPoint presentations. PowerPoint uses a fixed 96 PPI resolution for all on-screen elements.

PowerPoint PX → CM Converter

PowerPoint always uses 96 PPI internally. This converter uses that fixed value.

Result (at 96 PPI)
50.80
centimeters
Inches
20.00
Millimeters
508.00
Points (pt)
1440.00
EMU
18,288,000

How Pixels to CM Works in PowerPoint

Microsoft PowerPoint uses a fixed 96 PPI resolution. This means every pixel in PowerPoint equals exactly 0.0265 cm. Unlike Photoshop, you cannot change this PPI value.

CM in PowerPoint = Pixels ÷ 96 × 2.54

PowerPoint internally uses EMU (English Metric Units) where 1 inch = 914,400 EMU, which provides sub-pixel precision for positioning elements.

PowerPoint Slide Dimensions

Slide FormatPixels (px)Size (cm)Aspect Ratio
Widescreen (default)1280 × 72033.87 × 19.0516:9
Standard960 × 72025.4 × 19.054:3
A4 Paper794 × 112321.0 × 29.7~1:1.41
Letter Paper816 × 105621.59 × 27.94~1:1.29

Tips for Working with CM in PowerPoint

  • •Go to Design → Slide Size → Custom Slide Size to set dimensions in cm
  • •Right-click an image → Size and Position to enter exact cm values
  • •For high-quality prints, export as PDF — PowerPoint will embed images at their native resolution