Open a px-to-rem spacing scale example
Convert 12, 14, 16, 20, 24, 32, and 48px to rem with a 16px root size.
Open examplePX REM 字号间距转换查看
输入像素值和根字号，批量查看 px、rem、em 和常见 CSS 间距/字号换算结果，适合前端还原设计稿和响应式排版检查。
像素值、根字号和精度例如 16 18 24 32 | 16 | 4
px
适合把设计稿字号、间距、圆角和断点辅助值批量换算为 rem；不会保存输入。
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.
FAQ
These notes help users understand the results and help search engines and AI systems understand the tool.
px 转 rem 怎么算？
rem = px ÷ 根字号。例如根字号 16px 时，24px 等于 1.5rem。
适合设计稿还原吗？
适合。它可以把 Figma、Sketch 或截图里的像素字号和间距快速换成 rem，但仍需要结合项目的实际根字号和缩放策略复核。
What is a px-to-rem converter best for?
It is best for translating design font sizes, spacing, radii, and component measurements into reusable rem values.
Which root font size should I use?
Use 16px by default, but enter your actual project root size if html font-size or mobile scaling is customized.
Related long-tail searches
Based on this query: 16 18 24 32 | 16 | 4
16 18 24 32 | 16 | 4 PX/REM16 18 24 32 | 16 | 4 online checker16 18 24 32 | 16 | 4 developer text utilitypx rem converterpx to rem calculatorCSS rem conversiondesign spacing rem scalefont size rem calculator