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Aspect Ratio Calculator
Enter width and height to simplify the aspect ratio, or lock a ratio and calculate the missing dimension.
16:9
Keep media and layouts proportional
Aspect ratio mistakes lead to stretched images, awkward crops, and inconsistent cards.
This calculator makes it quick to preserve a ratio while resizing assets or defining CSS aspect-ratio values.
Frequently Asked Questions
What is aspect ratio?
Aspect ratio is the proportional relationship between width and height, such as 16:9, 4:3, or 1:1.
Can I calculate a missing dimension?
This version simplifies the ratio from width and height; use the simplified ratio to resize proportionally.
Where is this useful?
Images, videos, cards, thumbnails, embeds, and responsive layout blocks.
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