FREE
Aspect ratio calculator
Calculate the simplified aspect ratio from width and height locally.
Each dimension must be a whole number from 1 to 100000. Calculates the simplified ratio only; does not resize.Explore toolsAspect ratio calculator
Calculate the simplified aspect ratio from width and height locally.
How to use
- Width
- Height
- Calculate ratio
Reduce width and height to their simplest whole-number ratio
Enter width first and height second. Each dimension must be a positive whole number from 1 to 100000, inclusive; zero, negative and fractional values are invalid. Use the same unit for both dimensions, such as pixels for both. The tool divides both values by their greatest common divisor and returns width:height in simplest form. 1920 × 1080 gives 16:9; 1080 × 1920 gives 9:16. The result is a unitless ratio, not new pixel dimensions. This tool does not upload, crop or resize images. Calculation runs locally in your browser; entered dimensions are not sent to a server.
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Example
1920 × 1080
16:9
Frequently asked questions
Is my input sent to a server?
Your images, text, QR contents and calculations are processed in your browser. Read our privacy policy for details about hosting, local storage and the current advertising status.
Is this tool free?
No account needed · Always free