🍎 卡路里 ↔ 焦耳Calorie to Joule
卡路里与焦耳互算（1 cal = 4.184 J）。本地换算，附常用相关单位。Convert calorie and joule (1 cal = 4.184 J). 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
「卡路里 ↔ 焦耳」是什么？What is the Calorie to Joule tool?
卡路里与焦耳互算（1 cal = 4.184 J）。本地换算，附常用相关单位。Convert calorie and joule (1 cal = 4.184 J). Runs locally with related units.
如何使用「卡路里 ↔ 焦耳」？How do I use the Calorie to Joule tool?
在「卡路里 ↔ 焦耳」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 Calorie to Joule and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 卡路里等于多少焦耳？How many joules in 1 calorie?
1 cal = 4.184 J（按国际定义系数）。1 cal = 4.184 J (international definition).
如何把卡路里换算成焦耳？How do I convert calorie to joule?
结果 = 数值 × 4.184。例如 1 cal = 4.184 J。result = value × 4.184. Example: 1 cal = 4.184 J.
卡路里/焦耳属于哪类单位？What kind of units are calorie/joule?
二者同属「能量」量纲，可安全互算；也可打开「energy-converter」做多单位对照。Both are energy units; see also the energy converter hub.
换算系数准确吗？Are the conversion factors exact?
「卡路里 ↔ 焦耳」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 Calorie to Joule uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「卡路里 ↔ 焦耳」免费吗？需要注册吗？Is the Calorie to Joule free? Do I need an account?
「卡路里 ↔ 焦耳」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 Calorie to Joule is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.