Aspect Ratio Calculator
Calculate simplified aspect ratios for screens, images, and videos.
Aspect Ratio
16:9
Decimal Ratio
1.7778
Frequently Asked Questions
What is a 16:9 aspect ratio?
16:9 is widescreen format used for HD and 4K TVs, YouTube videos, and most modern monitors.
How do I maintain aspect ratio when resizing?
Multiply both dimensions by the same scale factor. Enter one known dimension here and get the other automatically.