Electrical Calculators and Resources

Our electrical calculators and resources can help estimate the electrical uses and cost of lighting and household appliances and estimate wire sizes for electrical project work.

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Ohm’s Law Calculator

Calculate watts, volts, amps, ohms, power, voltage, current, and resistance using the Ohm’s Law and Watt’s Law formulas.

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Voltage Drop Calculator

Calculate voltage drop in an AC or DC circuit, find the minimum wire gauge required when planning a circuit, or determine the maximum length of conductors in a circuit.

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