Electrical Rechners
22 interactive tools with transparent guidance and tested shared calculation logic.
Ohms Law Rechner
Calculate voltage from current and resistance.
ElectricalWatts to Amps Rechner
Convert electrical power in watts to current using voltage.
ElectricalAmps to Watts Rechner
Convert current and voltage to electrical power.
ElectricalVolts to Watts Rechner
Calculate power from voltage and current.
ElectricalWatts to Volts Rechner
Calculate voltage from power and current.
ElectricalkW to Amps Rechner
Convert kilowatts to amps for a simplified DC/resistive circuit.
ElectricalAmps to kW Rechner
Convert amps to kilowatts for a simplified DC/resistive circuit.
ElectricalkVA to Amps Rechner
Convert apparent power to current for single-phase AC.
ElectricalAmps to kVA Rechner
Convert current and voltage to single-phase apparent power.
ElectricalPower Factor Rechner
Calculate power factor from real and apparent power.
ElectricalElectricity Cost Rechner
Estimate electricity cost from power, usage time and energy price.
ElectricalEnergy Consumption Rechner
Calculate energy consumed by a device.
ElectricalWatts to kWh Rechner
Convert constant power over time into energy.
ElectricalkWh to Watts Rechner
Find average watts from energy and time.
ElectricalVoltage Divider Rechner
Calculate unloaded output voltage of a two-resistor divider.
ElectricalSeries Resistance Rechner
Add resistor values in series.
ElectricalParallel Resistance Rechner
Calculate equivalent resistance of parallel resistors.
ElectricalLED Resistor Rechner
Estimate a series resistor for an LED circuit.
ElectricalBattery Life Rechner
Estimate battery runtime from capacity and load current.
ElectricalmAh to Wh Rechner
Convert battery capacity in milliamp-hours to watt-hours using voltage.
ElectricalWh to mAh Rechner
Convert watt-hours to milliamp-hours using voltage.
ElectricalSolar Panel Output Rechner
Estimate daily solar energy production from array size, peak-sun hours and system efficiency.