Calculate a simplified aspect ratio, or solve for a missing width or height, with common image and video presets.
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The Aspect Ratio Calculator simplifies a width/height pair into a ratio, or solves for a missing width or height from a ratio, with common image/video presets.
Yes. Width, height, and ratio fields all accept decimals, and results are rounded to a sensible number of decimal places rather than showing excessive, meaningless digits.
The tool rejects it with a clear error message, since an aspect ratio is meaningless when width or height is zero or negative.
No. These labels just describe ratios creators commonly use today — they are not a permanent, contractually guaranteed spec from any platform, and actual platform recommendations can change over time.
Simplified ratio: 16:9
Decimal ratio: 1.7778
