a11y.skipToMainContent
1

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

Volts (V)
Amps (A)
0.0 - 1.0

Power Calculations

Active Power (P)
0kW
(0 W)
Apparent Power (S)
0kVA
(0 VA)
Reactive Power (Q)
0kVAR
(0 VAR)
Was this tool helpful?
Send output to:
Advertisement

How to use AC Power Calculator

  1. Select either Single Phase or Three Phase AC system.
  2. Enter the Voltage (V), Current (Amps), and Power Factor (typically between 0.1 and 1.0).
  3. Read the calculated Active Power, Apparent Power, and Reactive Power instantly.

AC Power Calculator అంటే ఏమిటి?

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.

Advertisement

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.

Related tools

Author

OH
Omar Hassan"The Number Cruncher"

Engineer & Unit Conversion Specialist

Omar is a mechanical engineer by training and a unit-conversion enthusiast by passion. He has built calibration systems for aerospace and automotive manufacturers and knows firsthand how a single decimal error can cost millions in rework. His mission is to make every conversion instant, accurate, and accessible to everyone, whether they are a student, tradesperson, or practicing engineer, with no advanced degree required.

Advertisement