Enter width & height to get the ratio, or enter a ratio and one new dimension to solve the other.
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Decimal ratio
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Solved dimension
Frequently Asked Questions
What is an aspect ratio?
It is the proportional relationship between width and height, written as W:H (e.g. 16:9). To resize while keeping the ratio, multiply the other dimension by the same factor.
Find the aspect ratio of a width and height, and resize while keeping the same ratio.