🟩 公厘 ↔ 公亩（十）Centiare to Decare
公厘与公亩（十）互算（1 ca = 0.001 daa）。本地换算，附常用相关单位。Convert centiare and decare (1 ca = 0.001 daa). 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
「公厘 ↔ 公亩（十）」是什么？What is the Centiare to Decare tool?
公厘与公亩（十）互算（1 ca = 0.001 daa）。本地换算，附常用相关单位。Convert centiare and decare (1 ca = 0.001 daa). Runs locally with related units.
如何使用「公厘 ↔ 公亩（十）」？How do I use the Centiare to Decare tool?
在「公厘 ↔ 公亩（十）」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 Centiare to Decare and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 公厘等于多少公亩（十）？How many decare in 1 centiare?
1 ca = 0.001 daa（按国际定义系数）。1 ca = 0.001 daa (international definition).
如何把公厘换算成公亩（十）？How do I convert centiare to decare?
结果 = 数值 × 0.001。例如 1000 ca = 1 daa。result = value × 0.001. Example: 1000 ca = 1 daa.
公厘/公亩（十）属于哪类单位？What kind of units are centiare/decare?
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?
「公厘 ↔ 公亩（十）」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 Centiare to Decare uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「公厘 ↔ 公亩（十）」免费吗？需要注册吗？Is the Centiare to Decare free? Do I need an account?
「公厘 ↔ 公亩（十）」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 Centiare to Decare is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.