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⚡ 安培转瓦特Amps to Watts Calculator
P = V × I（三相 × √3 × PF）。可设置「电流 A」、「电压 V」、「类型」、「功率因数」。P = V × I (× √3 × PF for 3-phase). Settings: Current A, Voltage V, Type, Power factor.
使用说明与常见问题How-to & FAQ
「安培转瓦特」是什么？What is the Amps to Watts Calculator tool?
P = V × I（三相 × √3 × PF）。可设置「电流 A」、「电压 V」、「类型」、「功率因数」。P = V × I (× √3 × PF for 3-phase). Settings: Current A, Voltage V, Type, Power factor.
如何使用「安培转瓦特」？How do I use the Amps to Watts Calculator tool?
在「安培转瓦特」中，填写「电流 A」、「电压 V」、「类型」、「功率因数」等参数，结果会随输入实时计算并显示在下方。In the Amps to Watts Calculator: Fill in "Current A", "Voltage V", "Type", "Power factor"; results are recalculated instantly as you type.
和“瓦特转安培”是什么关系？How does it relate to Watts to Amps?
两者互为反运算：本页算 P = V × I（三相 P = √3 × V × I × PF），瓦特转安培算 I = P ÷ V。同样的电压和功率因数下，两边结果可以互相验证。They are inverses: this page computes P = V × I (three-phase P = √3 × V × I × PF), and Watts to Amps computes I = P ÷ V. With the same voltage and power factor, each checks the other.
能举个计算实例吗？Can you show a worked example?
例如在「安培转瓦特」中填 电流 A = 10，电压 V = 120，类型 = 直流/单相，功率因数 = 1，结果区显示：功率：1,200 W；千瓦：1.2 kWFor example, entering Current A = 10, Voltage V = 120, Type = DC or 1-phase, Power factor = 1 in the Amps to Watts Calculator gives: Power: 1,200 W; Kilowatts: 1.2 kW
哪些输入会被检查？Which inputs are validated?
「安培转瓦特」会检查这些输入——「电流 A」、「电压 V」：必须填写，须大于 0；「功率因数」：必须填写，不能为负数；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Amps to Watts Calculator checks its inputs — "Current A", "Voltage V": required, must be greater than 0; "Power factor": required, cannot be negative; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.
有哪些选项可以调整？What options can I adjust?
「安培转瓦特」的设置：「电流 A」默认 10；「电压 V」默认 120；「类型」可选 直流/单相、三相（默认 直流/单相）；「功率因数」默认 0.9。每次生成结果都按当前设置处理。Settings in the Amps to Watts Calculator — "Current A" default 10; "Voltage V" default 120; "Type": DC or 1-phase, 3-phase (default DC or 1-phase); "Power factor" default 0.9. The result always uses the current settings.
计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?
「安培转瓦特」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 Amps to Watts 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.
「安培转瓦特」免费吗？需要注册吗？Is the Amps to Watts Calculator free? Do I need an account?
「安培转瓦特」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 Amps to Watts 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.