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🔄 角速度计算器Angular Velocity Calculator
由转速（rpm）、转角与时间或线速度与半径计算角速度，换算 rad/s、°/s、rpm 和 Hz。Find angular velocity from rpm, angle over time, or linear speed and radius, in rad/s, °/s, rpm and Hz.
使用说明与常见问题How-to & FAQ
「角速度计算器」是什么？What is the Angular Velocity Calculator tool?
由转速（rpm）、转角与时间或线速度与半径计算角速度，换算 rad/s、°/s、rpm 和 Hz。Find angular velocity from rpm, angle over time, or linear speed and radius, in rad/s, °/s, rpm and Hz.
如何使用「角速度计算器」？How do I use the Angular Velocity Calculator tool?
在「角速度计算器」中，填写「已知」、「转速 (rpm)」、「转角 (°)」、「时间 (s)」、「线速度 (m/s)」等参数，结果会随输入实时计算并显示在下方。In the Angular Velocity Calculator: Fill in "Given", "Speed (rpm)", "Angle (°)", "Time (s)", "Linear speed (m/s)"; results are recalculated instantly as you type.
计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?
「角速度计算器」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Angular Velocity Calculator uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.
「角速度计算器」免费吗？需要注册吗？Is the Angular Velocity Calculator free? Do I need an account?
「角速度计算器」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 Angular Velocity Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.