Three Phase Amps Calculator
Calculate three-phase current from apparent power and line voltage (A = kVA × 1000 ÷ (√3 × V)).
Formula
A = (kVA × 1000) ÷ (√3 × V)
- A
- Line current, in amps
- kVA
- Apparent power, in kilovolt-amps
- V
- Line-to-line voltage, in volts
What this calculator does
Calculates the line current of a balanced three-phase circuit from its apparent power (kVA) rating and voltage.
Use cases
- Find the secondary current of a three-phase transformer from its kVA rating
- Size conductors for a three-phase generator rated in kVA
- Check a nameplate kVA rating against the expected line current