Free Aspect Ratio Calculator
Calculate, simplify, and convert aspect ratios for any project. Enter your width and height and get the simplified ratio — or use a preset to find the correct dimensions.
📐 Calculate Aspect Ratio
Simplified Aspect Ratio
16:9
Widescreen HD standard
⚡ Common Aspect Ratio Presets
📊 Common Aspect Ratios & Uses
| Ratio | Common Use | Example Resolution |
|---|---|---|
| 16:9 | HD video, modern TVs, YouTube | 1920 × 1080 |
| 4:3 | Older TVs, classic photos | 1600 × 1200 |
| 21:9 | Cinema, ultrawide monitors | 2560 × 1080 |
| 1:1 | Instagram square, albums | 1080 × 1080 |
| 3:2 | DSLR cameras, 35mm film | 3000 × 2000 |
| 2:3 | Portrait photography, prints | 2000 × 3000 |
| 9:16 | Vertical video, TikTok, Reels | 1080 × 1920 |
| 4:5 | Instagram portrait posts | 1080 × 1350 |