💡 辐透 ↔ 英尺烛光Phot to Foot-candle
辐透与英尺烛光互算（1 ph = 929.0304 fc）。本地换算，附常用相关单位。Convert phot and foot-candle (1 ph = 929.0304 fc). 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
「辐透 ↔ 英尺烛光」是什么？What is the Phot to Foot-candle tool?
辐透与英尺烛光互算（1 ph = 929.0304 fc）。本地换算，附常用相关单位。Convert phot and foot-candle (1 ph = 929.0304 fc). Runs locally with related units.
如何使用「辐透 ↔ 英尺烛光」？How do I use the Phot to Foot-candle tool?
在「辐透 ↔ 英尺烛光」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 Phot to Foot-candle and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 辐透等于多少英尺烛光？How many foot-candle in 1 phot?
1 ph = 929.0304 fc（按国际定义系数）。1 ph = 929.0304 fc (international definition).
如何把辐透换算成英尺烛光？How do I convert phot to foot-candle?
结果 = 数值 × 929.0304。例如 1 ph = 929.0304 fc。result = value × 929.0304. Example: 1 ph = 929.0304 fc.
辐透/英尺烛光属于哪类单位？What kind of units are phot/foot-candle?
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?
「辐透 ↔ 英尺烛光」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 Phot to Foot-candle uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「辐透 ↔ 英尺烛光」免费吗？需要注册吗？Is the Phot to Foot-candle free? Do I need an account?
「辐透 ↔ 英尺烛光」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 Phot to Foot-candle is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.