☢️ 飞希 ↔ 阿希Femtosievert to Attosievert
飞希与阿希互算（1 fSv X = 1000 aSv）。本地换算，附常用相关单位。Convert femtosievert and attosievert (1 fSv X = 1000 aSv). 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
「飞希 ↔ 阿希」是什么？What is the Femtosievert to Attosievert tool?
飞希与阿希互算（1 fSv X = 1000 aSv）。本地换算，附常用相关单位。Convert femtosievert and attosievert (1 fSv X = 1000 aSv). Runs locally with related units.
如何使用「飞希 ↔ 阿希」？How do I use the Femtosievert to Attosievert tool?
在「飞希 ↔ 阿希」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 Femtosievert to Attosievert and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 飞希等于多少阿希？How many attosievert in 1 femtosievert?
1 fSv X = 1000 aSv（按国际定义系数）。1 fSv X = 1000 aSv (international definition).
如何把飞希换算成阿希？How do I convert femtosievert to attosievert?
结果 = 数值 × 1000。例如 1 fSv X = 1000 aSv。result = value × 1000. Example: 1 fSv X = 1000 aSv.
飞希/阿希属于哪类单位？What kind of units are femtosievert/attosievert?
二者同属「剂量当量」量纲，可安全互算。Both are dose equivalent units.
换算系数准确吗？Are the conversion factors exact?
「飞希 ↔ 阿希」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 Femtosievert to Attosievert uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「飞希 ↔ 阿希」免费吗？需要注册吗？Is the Femtosievert to Attosievert free? Do I need an account?
「飞希 ↔ 阿希」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 Femtosievert to Attosievert is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.