Design
Aspect Ratio Calculator
Privacy Verified
Calculate aspect ratios and resize dimensions proportionally. Supports all common ratios (16:9, 4:3, 1:1, etc.) with visual preview.
Aspect Ratio Calculator
Easily calculate aspect ratios and dimensions for screens, images, and videos.
Find Ratio
Enter dimensions to find the aspect ratio.
:
Result: 16:9
Find Dimensions
Enter one dimension and ratio to find the other.
⇆
Common Aspect Ratios
- 16:9 - Standard widescreen (HDTV, YouTube)
- 4:3 - Standard TV (Old CRT, iPad)
- 21:9 - Ultrawide monitors, Cinema
- 1:1 - Square (Instagram)
- 9:16 - Vertical video (Stories, TikTok, Reels)
Privacy & Security
Data: None
Client-side-Side
v
About This Tool
This tool runs entirely in your browser. No data is sent to any server, ensuring complete privacy. Simply use the interface above to get started — no registration or login required.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.