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Ohm’s Law & Power Calculator

Voltage, current, resistance and power from any two values

Known Values

Type values like 4.7k, 4k7, 100n or 2M2.

V
A
Ω
W

Display

Voltage

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Current

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Resistance

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Power

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Conductance

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Energy per Hour

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Diagram

Formulas

QuantityValueFormula