Image Aspect Ratio Calculator.
Upload an image or enter dimensions. Get the simplified ratio instantly—right in your browser.
1 · CHOOSE INPUT
Dimensions are read on this device.
2 · RESULT
No ratio yet
Upload an image or enter both dimensions to see the simplified ratio.
WHAT IT MEANS
Proportions, made simple.
An aspect ratio compares width with height. A 1920 × 1080 image simplifies to 16:9; a square becomes 1:1. This calculator reads dimensions only—it does not crop, resize or change your image.
Common ratios
- 1:1 Square posts and avatars
- 4:3 Classic photos and screens
- 16:9 Widescreen video and banners
- 9:16 Vertical stories and reels