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Single Phase Amps Calculator

Calculate single-phase current from apparent power and voltage (A = kVA × 1000 ÷ V).

Formula

A = (kVA × 1000) ÷ V

A
Current, in amps
kVA
Apparent power, in kilovolt-amps
V
Voltage, in volts

What this calculator does

Calculates the current of a single-phase circuit from its apparent power (kVA) rating and voltage.

Use cases

  • Find the secondary current of a single-phase transformer from its kVA rating
  • Size conductors for a single-phase generator rated in kVA
  • Check a nameplate kVA rating against the expected current

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