Electrical
Ohm's law, electrical power, cable sizing and other electrical calculations.
Ohm's law calculatorWork out voltage, current and resistance.Electrical power calculatorSingle-phase and three-phase power.kVA to kW converterApparent and real power with power factor.Cable size calculatorSize conductors by current and cable run length.Capacitor calculatorWork out capacitance, charge and stored energy.Resistor calculatorTotal resistance of series and parallel combinations.