Electrical Calculators
Voltage drop, wire gauge, wattage, and circuit calculators.
Power & Wattage
Amp-Hours (Ah) to Kilowatt-Hours (kWh) Conversion Calculator
Convert amp-hours to kilowatt-hours using electrical charge and voltage.
Open tool →Amp-Hours (Ah) to Watt-Hours (Wh) Conversion Calculator
Convert amp-hours to watt-hours using electrical charge and voltage.
Open tool →Amps to Horsepower Calculator
Convert electrical current to horsepower using voltage, phase, power factor, and efficiency.
Open tool →Amps to Kilowatts (kW) Conversion Calculator
Convert amps to kilowatts using voltage, phase, and power factor.
Open tool →Amps to Kilovolt-Amps (kVA) Conversion Calculator
Convert electrical current to apparent power in kilovolt-amps.
Open tool →Amps to Volt-Amps (VA) Conversion Calculator
Convert amps to volt-amps using voltage and phase.
Open tool →Amps to Volts Conversion Calculator
Calculate voltage from current and resistance using Ohm’s law.
Open tool →Amps to Watts Calculator
Convert amps to watts using voltage and power factor.
Open tool →Capacitance to Charge Conversion Calculator
Calculate electric charge from capacitance and voltage.
Open tool →Horsepower to Amps Calculator
Convert horsepower to current using voltage, phase, power factor, and efficiency.
Open tool →Horsepower to Kilovolt-Amps (kVA) Conversion Calculator
Convert horsepower to apparent power using efficiency and power factor.
Open tool →Joules to Volts Conversion Calculator
Calculate voltage from energy and electric charge.
Open tool →Joules to Watts Conversion Calculator
Calculate power from energy and elapsed time.
Open tool →Kilovolt-Amps (kVA) to Amps Conversion Calculator
Convert kVA to amps using voltage and phase.
Open tool →Kilovolt-Amps (kVA) to Horsepower Conversion Calculator
Convert kVA to horsepower using power factor and efficiency.
Open tool →Kilovolt-Amps (kVA) to Kilowatts (kW) Conversion Calculator
Convert kVA to kW using power factor.
Open tool →Kilovolt-Amps (kVA) to Volt-Amps (VA) Conversion Calculator
Convert kilovolt-amps to volt-amps.
Open tool →Kilovolt-Amps (kVA) to Watts Conversion Calculator
Convert kVA to watts using power factor.
Open tool →Kilowatts (kW) to Amps Conversion Calculator
Convert kilowatts to amps using voltage, phase, and power factor.
Open tool →Kilowatts (kW) to Kilovolt-Amps (kVA) Conversion Calculator
Convert real power in kW to apparent power in kVA.
Open tool →Kilowatts (kW) to Kilowatt-Hours (kWh) Conversion Calculator
Convert power in kW to energy in kWh using operating time.
Open tool →Kilowatts (kW) to Volt-Amps (VA) Conversion Calculator
Convert real power to apparent power in VA using power factor.
Open tool →Kilowatt-Hours (kWh) to Amp-Hours (Ah) Conversion Calculator
Convert kilowatt-hours to amp-hours using stored energy and voltage.
Open tool →Kilowatt-Hours (kWh) to Kilowatts (kW) Conversion Calculator
Convert energy in kWh to average power in kW using time.
Open tool →Kilowatt-Hours (kWh) to Watts Conversion Calculator
Convert kWh to average watts using elapsed time.
Open tool →Milliamp-Hours (mAh) to Watt-Hours (Wh) Conversion Calculator
Convert milliamp-hours to watt-hours using voltage.
Open tool →Volt-amps (VA) to Amps Conversion Calculator
Convert apparent power in VA to current using voltage and phase.
Open tool →Volt-Amps (VA) to Kilovolt-Amps (kVA) Conversion Calculator
Convert volt-amps to kilovolt-amps.
Open tool →Volt-amps (VA) to Kilowatts (kW) Conversion Calculator
Convert apparent power to real power using power factor.
Open tool →Volts to Amps Conversion Calculator
Calculate current from voltage and resistance using Ohm’s law.
Open tool →Volts to Joules Conversion Calculator
Calculate energy from voltage and electric charge.
Open tool →Volts to Watts Conversion Calculator
Calculate power from voltage, current, and power factor.
Open tool →Watts to Amps Calculator
Calculate current from watts, voltage, phase, and power factor.
Open tool →Watts to Joules Conversion Calculator
Calculate energy from power and elapsed time.
Open tool →Watts to Kilovolt-Amps (kVA) Conversion Calculator
Convert real power in watts to apparent power in kVA using power factor.
Open tool →Watts to Kilowatt-Hours (kWh) Conversion Calculator
Convert watts to energy in kilowatt-hours using operating time.
Open tool →Watts to Volts Conversion Calculator
Calculate voltage from watts and current.
Open tool →Watt-Hours (Wh) to Amp-Hours (Ah) Conversion Calculator
Convert watt-hours to amp-hours using voltage.
Open tool →Watt-Hours (Wh) to Milliamp-Hours (mAh) Conversion Calculator
Convert watt-hours to milliamp-hours using voltage.
Open tool →More Electrical Tools
Battery Runtime Calculator
Estimate how long a battery can power a load using its capacity, voltage, and usable depth of discharge.
Open tool →LED Wattage Calculator
Calculate the LED wattage needed to produce a target amount of light using lumens and the LED lamp's efficiency.
Open tool →Solar Panel Output Calculator
Estimate your solar system's daily, monthly, and yearly energy production from panel wattage, panel count, sunlight, and efficiency.
Open tool →Three-Phase Power Calculator
Calculate apparent, active, and reactive power in a balanced three-phase AC system.
Open tool →Transformer Sizing Calculator
Calculate the minimum transformer capacity in kVA from load current, voltage, and transformer phase configuration.
Open tool →VA to Watts Calculator
Convert volt-amps (VA) to watts (W) by entering apparent power and power factor.
Open tool →Voltage Divider Calculator
Calculate voltage divider output, source voltage, or resistor values from any three known circuit values with clear unit handling.
Open tool →Wire Gauge Calculator by Distance
Estimate the wire gauge needed for an electrical run based on voltage, current, distance, conductor material, and allowable voltage drop.
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