Use "Swap" to 快速 toggle between landscape and portrait orientations?

Use "Swap" to 快速 toggle between landscape and portrait orientations.

The CSS snippet copies a ready-to-paste aspect-ratio property 用于你的 stylesheets?

The CSS snippet copies a ready-to-paste aspect-ratio property 用于你的 stylesheets.

Social media presets give you the exact pixel dimensions each platform recommends.

Calculate and convert 宽高比s

Calculate and convert 宽高比s for images, videos, and screens. All calculations run instantly 在浏览器中.

1Enter a width and height to see the corresponding 宽高比.
2点击"Lock ratio"以constrain proportions — change one dimension and the other auto-adjusts。
3Browse common ratios (16:9, 4:3, 1:1, 21:9) or platform presets (Instagram, YouTube, X/Twitter).
4Use 设备 presets to check dimensions for popular phones, tablets, and monitors.
5点击"Copy dimensions" or "Copy ratio"以paste values into your design tool。

Use "Swap" to 快速 toggle between landscape and portrait orientations.
The CSS snippet copies a ready-to-paste aspect-ratio property 用于你的 stylesheets.
Social media presets give you the exact pixel dimensions each platform recommends.

免费：all ratios and presets。Starter+：CSS snippet export, device presets。