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在线功率计算器

电功率计算公式:电压V = R × I  电压V = P ÷ I  功率P = V × I  电流I = P ÷ V  功率P = V 2 ÷ R例:加热器电阻电源为220V,功率为65Ω。(220×220)÷65=744W纯直流电阻电力、电流电压在线自动计算器请输入任意两个值,第三个值将被计算。

Formula for calculating electric power:

Voltage V = R × (1)

Voltage V = P ÷ (2)

Power P = V × (3)

Electric current I = P ÷ (4)

Power P = V2 ÷ R (5)

(5)Example: a heater resistance The power supply is 220V, and its power is 65Ω.

(220×220)÷65=744W

Pure DC resistance electric power, current and voltage online automatic calculator

Please enter any two values, and the third values will be calculated.

power P W(Watt)
Voltage V V(Electric current)
Electric current I A(ampere)
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