Motors, Lighting & Conversions

Motors, Lighting & Conversions calculators — each with the formula, a worked example and a reference table. Results are estimates for planning and education; verify all sizing with a licensed electrician and your AHJ.

Motor FLA / HP / kW

Convert motor horsepower to kilowatts and estimate the full-load amps (FLA) from voltage, …

Power Converter (W/A/V/kVA)

Convert between watts, amps, volts and kVA for DC, single-phase and three-phase systems, u…

3-Phase Power

Calculate three-phase real power (W), apparent power (VA) and kVA from line voltage, line …

Wire Resistance

Find the DC resistance of a copper or aluminum conductor from its AWG size and length, one…