📏 英尺 ↔ 千米Foot to Kilometer
英尺与千米互算(1 km ≈ 3280.84 ft)。支持英尺、千米、米、英里互算。Feet ↔ kilometres (1 km ≈ 3,280.84 ft). Units: foot, kilometre, metre, mile.
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 ↔ 千米」是什么?What is the Foot to Kilometer tool?
英尺与千米互算(1 km ≈ 3280.84 ft)。支持英尺、千米、米、英里互算。Feet ↔ kilometres (1 km ≈ 3,280.84 ft). Units: foot, kilometre, metre, mile.
如何使用「英尺 ↔ 千米」?How do I use the Foot to Kilometer tool?
在「英尺 ↔ 千米」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 to Kilometer and choose the source unit; the table shows the value in every other unit at once, ready to copy.
英尺是哪种定义?Which foot is used?
国际英尺:1 英尺 = 0.3048 米(精确值),所以 1 公里 ≈ 3280.84 英尺。美国测量英尺略长约百万分之二,2023 年起已停用。The international foot: 1 ft = 0.3048 m exactly, so 1 km ≈ 3,280.84 ft. The US survey foot, about 2 parts per million longer, was retired in 2023.
1 英尺 等于多少其他单位?How much is 1 foot in the other units?
1 英尺 = 0.0003048 千米 = 0.3048 米 = 0.0001893939394 英里(按定义系数计算,最多保留 10 位有效数字)。本页不接受负数:输入负值会提示错误。1 foot = 0.0003048 kilometre = 0.3048 metre = 0.0001893939394 mile (from the defined factors, up to 10 significant digits). Negative values are not accepted here and show an error.
有哪些选项可以调整?What options can I adjust?
「英尺 ↔ 千米」的设置:「数值」默认 1。每次生成结果都按当前设置处理。Settings in the Foot to Kilometer — "Value" default 1. The result always uses the current settings.
换算系数准确吗?Are the conversion factors exact?
「英尺 ↔ 千米」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 to Kilometer uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「英尺 ↔ 千米」免费吗?需要注册吗?Is the Foot to Kilometer free? Do I need an account?
「英尺 ↔ 千米」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 to Kilometer is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.