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📐 Aspect Ratio Calculator
Calculate the aspect ratio from width and height, or resize dimensions while maintaining the same ratio.
How Aspect Ratio Works
An aspect ratio describes the proportional relationship between width and height of an image or screen. Common ratios include 16:9 (widescreen), 4:3 (standard), and 21:9 (ultrawide). The ratio is found by dividing both dimensions by their greatest common divisor (GCD).
Resizing While Maintaining Ratio
To resize an image while keeping its proportions, enter either a new width or new height. The calculator will compute the other dimension automatically using the original aspect ratio, preventing distortion.
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