Transformer calculator

NOTE: If you need assistance with circuit protection devices such as fuses or breakers, or wire sizing, please consult a licensed electrical contractor or electrician in your area who will be familiar with state and local codes.

All information obtained while using this calculator should be confirmed by a qualified electrical contractor or engineer.
 

1. Select transformer phase.

2. Enter any two values, then click or tap "Calculate"

KVA:

Volts:

Amps:

FORMULAS USED IN CALCULATOR:

1-Phase KVA = Volts x Amps / 1000
1-Phase Amps = KVA / Volts x 1000
3-Phase KVA = Volts x Amps x 1.732 / 1000
3-Phase Amps = KVA / Volts / 1.732 x 1000

 

REQUEST A QUOTE: