💧 英尺水柱 ↔ 毫托Foot of water to Millitorr
英尺水柱与毫托互算（1 ftH₂O = 22419.84564 mTorr）。本地换算，附常用相关单位。Convert foot of water and millitorr (1 ftH₂O = 22419.84564 mTorr). 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
「英尺水柱 ↔ 毫托」是什么？What is the Foot of water to Millitorr tool?
英尺水柱与毫托互算（1 ftH₂O = 22419.84564 mTorr）。本地换算，附常用相关单位。Convert foot of water and millitorr (1 ftH₂O = 22419.84564 mTorr). Runs locally with related units.
如何使用「英尺水柱 ↔ 毫托」？How do I use the Foot of water to Millitorr tool?
在「英尺水柱 ↔ 毫托」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 Foot of water to Millitorr and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 英尺水柱等于多少毫托？How many millitorr in 1 foot of water?
1 ftH₂O = 22419.84564 mTorr（按国际定义系数）。1 ftH₂O = 22419.84564 mTorr (international definition).
如何把英尺水柱换算成毫托？How do I convert foot of water to millitorr?
结果 = 数值 × 22419.84564。例如 1 ftH₂O = 22419.84564 mTorr。result = value × 22419.84564. Example: 1 ftH₂O = 22419.84564 mTorr.
英尺水柱/毫托属于哪类单位？What kind of units are foot of water/millitorr?
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?
「英尺水柱 ↔ 毫托」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 Foot of water to Millitorr uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「英尺水柱 ↔ 毫托」免费吗？需要注册吗？Is the Foot of water to Millitorr free? Do I need an account?
「英尺水柱 ↔ 毫托」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 Foot of water to Millitorr is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.