📐Video Geometry & Dimension Tools
Video Aspect Ratio Calculator
Calculate exact aspect ratios, simplify pixel dimensions with GCD reduction, and scale video resolutions without distortion.
Common Video Presets
Source Dimensions
Enter original video width and height in pixels.
Dimension Rescaler
Resize while preserving aspect ratio.
Calculated Aspect Ratio
16:9
Decimal Ratio1.78:1
CSS Aspect Ratio56.25%
Proportional Aspect Preview
16:9
Standard Aspect Ratios for Video Platforms
Reference table of the most common video dimensions used across modern social networks and streaming platforms.
| Ratio | Common Name | Standard Resolutions | Primary Platform |
|---|---|---|---|
| 16:9 | Widescreen Landscape | 1920×1080 (1080p), 1280×720 (720p), 3840×2160 (4K) | YouTube, Web Video, TV Broadcast |
| 9:16 | Vertical Full-Screen | 1080×1920, 720×1280 | YouTube Shorts, TikTok, Instagram Reels |
| 1:1 | Square Format | 1080×1080, 720×720 | Instagram Feed, Facebook Feed |
| 4:5 | Vertical Feed Portrait | 1080×1350 | Instagram Feed Posts |
| 21:9 | Cinematic Ultrawide | 2560×1080, 3440×1440 | Film, Gaming Monitors |