Aspect Ratio Calculator
A tool for calculating image and video aspect ratios from width and height values, with reverse-calculation to find new dimensions that maintain the original ratio. It includes common aspect ratio presets such as 16:9 (YouTube), 4:3 (traditional), and 1:1 (Instagram) for quick reference. Convenient for web designers planning responsive layouts, video editors preparing content for different platforms, and graphic artists resizing artwork proportionally.
Enter a number
Enter a number in any base to automatically convert it to other bases
0b
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0x
Enter a number in any base to get started
Aspect Ratio Calculator Features
- Auto-calculate aspect ratio from width and height
- Reverse-calculate resize dimensions maintaining ratio
- Common aspect ratio presets (16:9, 4:3, etc.)
- Handy for image and video size calculations
How to Use
- 1Enter width and height to calculate aspect ratio
- 2Select a preset ratio to calculate resize values
- 3Apply calculated results for resizing