Aspect Ratio Calculator
Calculate aspect ratios and resize dimensions proportionally. Enter width and height to find the ratio or scale to a new size.
Aspect Ratio
16:9
Decimal: 1.7778
Dimensions
Common Presets
Resize
Enter a new width or height to calculate the other dimension while maintaining the current 16:9 ratio.
Common Aspect Ratios & Use Cases
16:9Widescreen displays, YouTube videos, HD/4K content
4:3Classic TV, iPad displays, presentations
1:1Instagram posts, profile pictures, album covers
21:9Ultrawide monitors, cinematic films
9:16Instagram Stories, TikTok, YouTube Shorts
3:2DSLR photos, 6x4 prints, MacBook displays
5:4Large format photography, 8x10 prints
2:1Panoramic photos, 18:9 phone screens