Aspect Ratio Calculator
Resize width or height while keeping aspect ratio.
使用方法
- 一切都在您的浏览器本地运行：不会上传任何数据，无需账户。
关于
Enter the original dimensions and a new width or height; the matching dimension is computed with rounding, and the closest simple ratio (like 16:9) is shown.
Simplification uses the greatest common divisor, so 1920 × 1080 correctly reduces to 16:9 rather than an unwieldy fraction.
一切都在您的浏览器本地运行：不会上传任何数据，无需账户。
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