Electrical & Electronics
Electrical Power Calculator
Calculate power and energy for DC, single-phase and three-phase systems.
CALCULATOR
Enter values
USAGE
How to use it
- Select the system type.
- Enter electrical values and power factor.
- Add operating time to obtain energy use.
FORMULA
Calculation
DC: P = VI; 1φ: P = VIcosφ; 3φ: P = √3VIcosφExample
230 V, 10 A, PF 0.9 single phase = 2.07 kW
TECHNICAL
Technical notes
- Three-phase calculation uses line-to-line voltage.
- Reactive power and harmonics are not modeled.