How are rem conversions calculated?

rem conversions assume a 16px root font size by default (the browser default). You can change this to match your project's root font size.

What is the difference between em and rem?

em is relative to the parent element's font size; rem is relative to the root element's font size. rem is more predictable for layouts.

Yes. Enter a viewport width or height to calculate vw and vh equivalents for any pixel value.

在px、rem、em、pt和vw之间转换CSS值。

文本输入

在px、rem、em、pt和vw之间转换CSS值。由 JustUse.me 提供 — 免费、无广告、保护隐私。此工具完全在浏览器中运行，文件不会上传到任何服务器。