📐 Slide Size Converter

Free slide size converter: switch between 16:9 and 4:3, and convert PowerPoint slide dimensions across centimetres, inches, pixels and EMU. Runs entirely in your browser.

Presets

Unit

Width

Height

Converted

Centimetres33.867 × 19.05

Inches13.333 × 7.5

Points960 × 540

EMU (OOXML)12,192,000 × 6,858,000

Aspect ratio1.778 : 1

Pixel size when exported as an image

96 DPI1280 × 720 px

150 DPI2000 × 1125 px

300 DPI4000 × 2250 px

PowerPoint stores slide size in EMU — 914,400 EMU to the inch. Pixel dimensions depend on the export DPI, which is why they are listed separately.

How to change it in PowerPoint

Design → Slide Size → Custom Slide Size
Enter the width and height in centimetres or inches
Choose “Maximise” or “Ensure Fit” when asked how to scale existing content