🩺 毫米汞柱 ↔ psfMmHg to Pound per square foot
毫米汞柱与psf互算（1 mmHg = 2.78449595416 psf）。本地换算，附常用相关单位。Convert mmHg and pound per square foot (1 mmHg = 2.78449595416 psf). Runs locally with related units.
点击任意一行可复制该结果；小于 0.0001 或不小于 10¹⁵ 的数值用 × 10ⁿ 科学计数法显示Click any row to copy that result. Values below 0.0001 or at least 10¹⁵ are shown in × 10ⁿ notation
使用说明与常见问题How-to & FAQ
「毫米汞柱 ↔ psf」是什么？What is the MmHg to Pound per square foot tool?
毫米汞柱与psf互算（1 mmHg = 2.78449595416 psf）。本地换算，附常用相关单位。Convert mmHg and pound per square foot (1 mmHg = 2.78449595416 psf). Runs locally with related units.
如何使用「毫米汞柱 ↔ psf」？How do I use the MmHg to Pound per square foot tool?
在「毫米汞柱 ↔ psf」中输入数值并选择原单位，表格会同时列出换算到所有其他单位的结果，可一键复制。Enter a value in the MmHg to Pound per square foot and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 毫米汞柱等于多少psf？How many pound per square foot in 1 mmHg?
1 mmHg = 2.78449595416 psf（按国际定义系数）。1 mmHg = 2.78449595416 psf (international definition).
如何把毫米汞柱换算成psf？How do I convert mmHg to pound per square foot?
结果 = 数值 × 2.78449595416。例如 1 mmHg = 2.78449595416 psf。result = value × 2.78449595416. Example: 1 mmHg = 2.78449595416 psf.
毫米汞柱/psf属于哪类单位？What kind of units are mmHg/pound per square foot?
二者同属「压力」量纲，可安全互算；也可打开「pressure-converter」做多单位对照。Both are pressure units; see also the pressure converter hub.
换算系数准确吗？Are the conversion factors exact?
「毫米汞柱 ↔ psf」采用国际单位制（SI）或公认标准中的定义值作为换算系数，结果保留约 10 位有效数字。The MmHg to Pound per square foot uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「毫米汞柱 ↔ psf」免费吗？需要注册吗？Is the MmHg to Pound per square foot free? Do I need an account?
「毫米汞柱 ↔ psf」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The MmHg to Pound per square foot is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.