Electrical / Electronics
Single-phase power
Calculates single-phase active power from voltage, current and power factor.
Related calculators
Single-phase apparent power
Calculates single-phase apparent power from RMS voltage and RMS current.
Power factor from kW and kVA
Calculates power factor as active power divided by apparent power.
Manual single-phase cable sizing check
Combines load current, manually corrected Iz, voltage drop and overload-condition checks.
Reactive power from S and P
Calculates reactive power from apparent and active power.
DC electrical power
Calculates DC electrical power from voltage and current.
DC power from current and resistance
Calculates DC power from current and resistance.