🧴 五分之一加仑 ↔ 英亩·英尺Fifth (US) to Acre-foot
五分之一加仑与英亩·英尺互算（1 fifth = 6.13776655443e-07 ac·ft）。本地换算，附常用相关单位。Convert fifth (US) and acre-foot (1 fifth = 6.13776655443e-07 ac·ft). 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
「五分之一加仑 ↔ 英亩·英尺」是什么？What is the Fifth (US) to Acre-foot tool?
五分之一加仑与英亩·英尺互算（1 fifth = 6.13776655443e-07 ac·ft）。本地换算，附常用相关单位。Convert fifth (US) and acre-foot (1 fifth = 6.13776655443e-07 ac·ft). Runs locally with related units.
如何使用「五分之一加仑 ↔ 英亩·英尺」？How do I use the Fifth (US) to Acre-foot tool?
在「五分之一加仑 ↔ 英亩·英尺」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 Fifth (US) to Acre-foot and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 五分之一加仑等于多少英亩·英尺？How many acre-foot in 1 fifth (US)?
1 fifth = 6.13776655443e-07 ac·ft（按国际定义系数）。1 fifth = 6.13776655443e-07 ac·ft (international definition).
如何把五分之一加仑换算成英亩·英尺？How do I convert fifth (US) to acre-foot?
结果 = 数值 × 6.13776655443e-07。例如 1629257.14286 fifth = 1 ac·ft。result = value × 6.13776655443e-07. Example: 1629257.14286 fifth = 1 ac·ft.
五分之一加仑/英亩·英尺属于哪类单位？What kind of units are fifth (US)/acre-foot?
二者同属「体积」量纲，可安全互算；也可打开「volume-converter」做多单位对照。Both are volume units; see also the volume converter hub.
换算系数准确吗？Are the conversion factors exact?
「五分之一加仑 ↔ 英亩·英尺」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 Fifth (US) to Acre-foot uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「五分之一加仑 ↔ 英亩·英尺」免费吗？需要注册吗？Is the Fifth (US) to Acre-foot free? Do I need an account?
「五分之一加仑 ↔ 英亩·英尺」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 Fifth (US) to Acre-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.