Amps to VA Calculator

Convert amps to volt-amps (VA) for single-phase and three-phase circuits. Calculate apparent power for UPS sizing.

A
V

APPARENT POWER

1,800 VA

IN kVA

1.8 kVA

FORMULA

VA = I Γ— V

πŸ’‘ How to Convert Amps to VA

Formula

Single-Phase: VA = I Γ— V
Three-Phase: VA = I Γ— V Γ— √3

Example: 15A at 120V β†’ VA = 15 Γ— 120 = 1,800 VA
15A Γ— 120V = 1,800 VA. This is the apparent power drawn from the circuit.

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