Image Aspect Ratio Calculator
Calculate the aspect ratio of any image or screen resolution. Essential for responsive design and photo cropping.
16:9
Aspect Ratio
1.78
Decimal
Common Image Aspect Ratios
- 16:9: HD video, YouTube, most monitors (1920×1080)
- 4:3: Traditional TV, iPad, older displays
- 1:1: Square, Instagram posts
- 9:16: Portrait video, Instagram Stories, TikTok
- 3:2: DSLR photos, 35mm film
Why Aspect Ratio Matters
Using the correct aspect ratio ensures images display properly without stretching or cropping unexpectedly.