Amps to VA Calculator
Easily convert current (amps) to apparent power (volt-amperes) for single-phase and three-phase circuits
Calculation Result
Apparent Power (VA)
Apparent Power (kVA)
Formula Used:
Calculation Formulas
Single Phase
VA = I × V
Three Phase
VA = I × V × √3
Where: I = Current (Amps), V = Voltage (Volts), √3 ≈ 1.732
Common Examples
Example 1: 220V Single Phase, 10A Current
VA = 10 × 220 = 2,200 VA (2.20 kVA)
Example 2: 380V Three Phase, 15A Current
VA = 15 × 380 × 1.732 = 9,994 VA (9.99 kVA)
Frequently Asked Questions (FAQ)
Apparent power (VA) is the product of voltage and current in an AC circuit, representing the total power supplied to the circuit. It includes both real power (watts) used by the load and reactive power (VAR) stored and returned by inductive/capacitive components.
VA (volt-amperes) is apparent power, while Watts is real power. The relationship is: Watts = VA × Power Factor. Real power is the actual power consumed by the load, while apparent power is the total power drawn from the source.
This conversion is commonly used in electrical system design, equipment sizing (transformers, generators, UPS systems), and load planning. It helps determine the total power capacity required to operate electrical devices, considering both active and reactive power.
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