AC Wattage Calculator
Free calculate ac power consumption and wattage from voltage, current, and power factor for single-phase and three-phase circuits.
Circuit Parameters
Range: 0 to 1 (1 = resistive load)
Results
Enter circuit parameters to calculate wattage
AC Power Calculation Guide
Formulas
Single Phase: P = V × I × PF
Three Phase: P = √3 × V × I × PF
Where PF = Power Factor (0-1)
Power Factor Examples
- • Resistive loads: 1.0
- • Motors: 0.7-0.9
- • Fluorescent lights: 0.5-0.9
- • Computers: 0.6-0.8