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How to Calculate Aspect Ratio
Formula
Aspect ratio is the proportional relationship between width and height, simplified by dividing both by their GCD.
This calculator also scales dimensions proportionally when you provide a target width.
Common use cases:
- Video and image resizing
- Monitor and screen comparisons
- Print layout and design scaling
Frequently Asked Questions
Dr. David Park
Applied Mathematician, PhD Mathematics
David holds a PhD in Applied Mathematics from MIT. He has published research on numerical methods and computational algorithms used in engineering and scientific calculators.
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