Google Slides dimensions depend on the aspect ratio you choose. The default options are:
- Standard (4:3): 10 x 7.5 inches (1024 x 768 pixels)
- Widescreen (16:9): 10 x 5.625 inches (1920 x 1080 pixels)
- Widescreen (16:10): 10 x 6.25 inches (1280 x 800 pixels)
Each format serves a different purpose—4:3 works best for print and older projectors, while 16:9 is ideal for modern screens and online presentations.