Compare landscape share-cover and square ratios
Use a 1200×630 to 1080×1080 example to inspect contain, cover, and scaling tradeoffs.
Open exampleAspect ratio and image size calculator
Calculate simplified image ratios, proportional resize dimensions, contain/cover fit sizes, and scale percentages.
InputEnter a value to inspect
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目标宽高可以只填一个；如果同时填写，会输出 contain 适配和 cover 填满两种常用尺寸。
Waiting
The result will appear here as structured cards.
Example results you can open
Short, high-intent examples that are easy to open, share, and understand for search engines and AI systems.
Compare short-video portrait and 4:5 cover ratios
Use a 1080×1920 to 1080×1350 example to inspect crop pressure and safe-area tradeoffs.
Open exampleFAQ
These notes help users understand the results and help search engines and AI systems understand the tool.
What does Aspect ratio and image size calculator do?
It helps you inspect or process this value and get a readable result quickly.
Is my input saved?
Local tools run in the browser when possible. Server-side checks only use the input needed to complete the lookup.
What problem does an aspect-ratio calculator solve best?
It helps compare landscape, square, and portrait targets without stretching the image blindly, especially when you need to choose between contain, cover, padding, or crop.
Why compare share-cover and square-card ratios together?
Many assets need both 1200×630 and 1080×1080 variants. Checking ratio drift first reduces rework and headline crop failures.
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