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Ratio

Aspect Ratio Calculator

Aspect Ratio Calculator

Calculate aspect ratios for screens and images, or find missing dimensions from a ratio.

Aspect Ratio Calculator

Common Presets

Width

Height

Aspect Ratio

Formula

W:H simplified

W = Width
H = Height, both divided by their GCD

Related Calculators

Photo Ratio Calculator

Ratio Simplifier

Pro Tips

16:9 is universal for video; 4:3 for traditional monitors; 1:1 for social media.

Always maintain aspect ratio when resizing to prevent image distortion.

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