Is Aspect Ratio Calculator free to use?

Yes, Aspect Ratio Calculator is completely free. No registration, no account, and no hidden costs — ever.

Is my data safe when using Aspect Ratio Calculator?

All processing happens directly in your browser. Your data never leaves your device — nothing is uploaded or stored on our servers.

No. All CheckTown tools work instantly without registration or sign-up.

Aspect Ratio Calculator works on any device — desktop, tablet, or phone. The interface adapts to your screen size.

计算宽高比、求解缺失的尺寸，并预览图片和视频的常见比例。

宽度

高度

输入尺寸即可计算

输入宽度和高度，或选择一个预设比例

Ctrl+Enter 运行Ctrl+Shift+C 复制

计算宽高比、求出缺失的尺寸，并浏览适用于视频、摄影和网页设计的常用预设。

什么是宽高比？

宽高比是图像、视频或屏幕的宽度与高度之间的比例关系，用两个以冒号分隔的数字表示——例如 16:9 表示每 9 个单位的高度对应 16 个单位的宽度。保持正确的宽高比可以在缩放媒体时避免画面变形。