Transformer Sizing Calculator
Calculate the appropriate transformer kVA rating for your load requirements.
Results
Enter load information to calculate transformer size.
Standard Transformer Sizes (kVA)
Single Phase: 5, 10, 15, 25, 37.5, 50, 75, 100, 167, 250, 333, 500
Three Phase: 15, 30, 45, 75, 112.5, 150, 225, 300, 500, 750, 1000, 1500, 2000, 2500