🌾 费丹 ↔ 平方间Feddan to Square ken
费丹与平方间互算（1 feddan = 1270.5 ken²）。本地换算，附常用相关单位。Convert feddan and square ken (1 feddan = 1270.5 ken²). 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
「费丹 ↔ 平方间」是什么？What is the Feddan to Square ken tool?
费丹与平方间互算（1 feddan = 1270.5 ken²）。本地换算，附常用相关单位。Convert feddan and square ken (1 feddan = 1270.5 ken²). Runs locally with related units.
如何使用「费丹 ↔ 平方间」？How do I use the Feddan to Square ken tool?
在「费丹 ↔ 平方间」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 Feddan to Square ken and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 费丹等于多少平方间？How many square ken in 1 feddan?
1 feddan = 1270.5 ken²（按国际定义系数）。1 feddan = 1270.5 ken² (international definition).
如何把费丹换算成平方间？How do I convert feddan to square ken?
结果 = 数值 × 1270.5。例如 1 feddan = 1270.5 ken²。result = value × 1270.5. Example: 1 feddan = 1270.5 ken².
费丹/平方间属于哪类单位？What kind of units are feddan/square ken?
二者同属「面积」量纲，可安全互算；也可打开「area-converter」做多单位对照。Both are area units; see also the area converter hub.
换算系数准确吗？Are the conversion factors exact?
「费丹 ↔ 平方间」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 Feddan to Square ken uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「费丹 ↔ 平方间」免费吗？需要注册吗？Is the Feddan to Square ken free? Do I need an account?
「费丹 ↔ 平方间」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 Feddan to Square ken is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.