Calculate 16:9 Aspect Ratio Dimensions Online
Enter a width and the calculator returns the matching 16:9 height, so 1920 gives 1080 and 1280 gives 720. Lock the ratio to resize an image or video while keeping the proportions exact.
Aspect Ratio Calculator
Calculate and convert aspect ratios for images, videos, and screens
1920 x 1080px · 16:9 · 1.7778:1
Common Aspect Ratios Reference
| Ratio | Decimal | Common Use |
|---|---|---|
| 16:9 | 1.778 | Widescreen TV, YouTube, monitors |
| 4:3 | 1.333 | Classic TV, iPad, presentations |
| 1:1 | 1.000 | Instagram square, profile pictures |
| 21:9 | 2.333 | Ultrawide monitors, cinema |
| 9:16 | 0.563 | Phone vertical, TikTok, Reels |
| 3:2 | 1.500 | 35mm photography, MacBook |
| 2:3 | 0.667 | Portrait photography, posters |
| 5:4 | 1.250 | Large format photography, older monitors |
| 32:9 | 3.556 | Super ultrawide monitors |
| 2.39:1 | 2.390 | Anamorphic cinema, widescreen films |
Quick Start
- 1Select the 16:9 preset ratio
- 2Enter your target width
- 3Read the calculated height that keeps the 16:9 ratio
- 4Adjust either dimension to rescale without distortion
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Looking for FAQs and advanced options? Visit the full Aspect Ratio Calculator page →