🔥 英热单位（热化学） ↔ 兆吨 TNTThermochemical BTU to Megaton of TNT
英热单位（热化学）与兆吨 TNT互算（1 BTUth = 2.51995761099e-13 MtTNT）。本地换算，附常用相关单位。Convert thermochemical BTU and megaton of TNT (1 BTUth = 2.51995761099e-13 MtTNT). 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
「英热单位（热化学） ↔ 兆吨 TNT」是什么？What is the Thermochemical BTU to Megaton of TNT tool?
英热单位（热化学）与兆吨 TNT互算（1 BTUth = 2.51995761099e-13 MtTNT）。本地换算，附常用相关单位。Convert thermochemical BTU and megaton of TNT (1 BTUth = 2.51995761099e-13 MtTNT). Runs locally with related units.
如何使用「英热单位（热化学） ↔ 兆吨 TNT」？How do I use the Thermochemical BTU to Megaton of TNT tool?
在「英热单位（热化学） ↔ 兆吨 TNT」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 Thermochemical BTU to Megaton of TNT and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 英热单位（热化学）等于多少兆吨 TNT？How many megaton of TNT in 1 thermochemical BTU?
1 BTUth = 2.51995761099e-13 MtTNT（按国际定义系数）。1 BTUth = 2.51995761099e-13 MtTNT (international definition).
如何把英热单位（热化学）换算成兆吨 TNT？How do I convert thermochemical BTU to megaton of TNT?
结果 = 数值 × 2.51995761099e-13。例如 3.96832071951e+12 BTUth = 1 MtTNT。result = value × 2.51995761099e-13. Example: 3.96832071951e+12 BTUth = 1 MtTNT.
英热单位（热化学）/兆吨 TNT属于哪类单位？What kind of units are thermochemical BTU/megaton of TNT?
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?
「英热单位（热化学） ↔ 兆吨 TNT」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 Thermochemical BTU to Megaton of TNT uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「英热单位（热化学） ↔ 兆吨 TNT」免费吗？需要注册吗？Is the Thermochemical BTU to Megaton of TNT free? Do I need an account?
「英热单位（热化学） ↔ 兆吨 TNT」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 Thermochemical BTU to Megaton of TNT is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.