💡 英尺烛光 ↔ 辐透Foot-candle to Phot
英尺烛光与辐透互算（1 fc = 0.00107639104167 ph）。本地换算，附常用相关单位。Convert foot-candle and phot (1 fc = 0.00107639104167 ph). 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
「英尺烛光 ↔ 辐透」是什么？What is the Foot-candle to Phot tool?
英尺烛光与辐透互算（1 fc = 0.00107639104167 ph）。本地换算，附常用相关单位。Convert foot-candle and phot (1 fc = 0.00107639104167 ph). Runs locally with related units.
如何使用「英尺烛光 ↔ 辐透」？How do I use the Foot-candle to Phot tool?
在「英尺烛光 ↔ 辐透」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-candle to Phot and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 英尺烛光等于多少辐透？How many phot in 1 foot-candle?
1 fc = 0.00107639104167 ph（按国际定义系数）。1 fc = 0.00107639104167 ph (international definition).
如何把英尺烛光换算成辐透？How do I convert foot-candle to phot?
结果 = 数值 × 0.00107639104167。例如 1 fc = 0.00107639104167 ph。result = value × 0.00107639104167. Example: 1 fc = 0.00107639104167 ph.
英尺烛光/辐透属于哪类单位？What kind of units are foot-candle/phot?
二者同属「照度」量纲，可安全互算。Both are illuminance units.
换算系数准确吗？Are the conversion factors exact?
「英尺烛光 ↔ 辐透」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-candle to Phot uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「英尺烛光 ↔ 辐透」免费吗？需要注册吗？Is the Foot-candle to Phot free? Do I need an account?
「英尺烛光 ↔ 辐透」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-candle to Phot is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.