AC Power Calculator
Calculate single and three-phase AC electrical power parameters, including Watts, Volt-Amperes, and Amps.
AC Power Calculator
Calculate Active, Apparent, and Reactive Power for Single & Three Phase systems
Power Calculations
How to use AC Power Calculator
- Select either Single Phase or Three Phase AC system.
- Enter the Voltage (V), Current (Amps), and Power Factor (typically between 0.1 and 1.0).
- Read the calculated Active Power, Apparent Power, and Reactive Power instantly.
What is AC Power Calculator?
Alternating Current (AC) circuits carry active power (W), apparent power (VA), and reactive power (VAR). In a single-phase circuit, Active Power P = V × I × PF. In a balanced three-phase circuit, Active Power P = √3 × V_line × I × PF. The Power Factor (PF) represents the phase angle between voltage and current.
FAQ
- What is Power Factor?
- Power Factor (PF) is the ratio of real power (W) to apparent power (VA) flowing in the circuit, measuring how effectively electrical power is converted into useful work.
- What is the difference between single and three-phase power?
- Single-phase power uses one active conductor and is common in residential homes. Three-phase power uses three active conductors, providing smoother, more consistent power delivery for industrial machinery and commercial buildings.
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