📐 角秒 ↔ 度Arcsecond to Degree
角秒与度互算（1 ″ = 0.000277777777778 °）。本地换算，附常用相关单位。Convert arcsecond and degree (1 ″ = 0.000277777777778 °). 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
「角秒 ↔ 度」是什么？What is the Arcsecond to Degree tool?
角秒与度互算（1 ″ = 0.000277777777778 °）。本地换算，附常用相关单位。Convert arcsecond and degree (1 ″ = 0.000277777777778 °). Runs locally with related units.
如何使用「角秒 ↔ 度」？How do I use the Arcsecond to Degree tool?
在「角秒 ↔ 度」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 Arcsecond to Degree and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 角秒等于多少度？How many degree in 1 arcsecond?
1 ″ = 0.000277777777778 °（按国际定义系数）。1 ″ = 0.000277777777778 ° (international definition).
如何把角秒换算成度？How do I convert arcsecond to degree?
结果 = 数值 × 0.000277777777778。例如 3600 ″ = 1 °。result = value × 0.000277777777778. Example: 3600 ″ = 1 °.
角秒/度属于哪类单位？What kind of units are arcsecond/degree?
二者同属「角度」量纲，可安全互算；也可打开「angle-converter」做多单位对照。Both are angle units; see also the angle converter hub.
换算系数准确吗？Are the conversion factors exact?
「角秒 ↔ 度」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 Arcsecond to Degree uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「角秒 ↔ 度」免费吗？需要注册吗？Is the Arcsecond to Degree free? Do I need an account?
「角秒 ↔ 度」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 Arcsecond to Degree is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.