Transformer Turns Ratio Calculator

Calculate transformer parameters including turns ratio, voltages, currents, and impedances.

V
V
A
%
Hz
Transformer Diagram

Transformer Reference

Basic Relationships
  • V1/V2 = N1/N2
  • I1/I2 = N2/N1
  • Z1/Z2 = (N1/N2)²
Typical Efficiencies
Small Transformers 85-95%
Medium Transformers 95-98%
Large Transformers 98-99%
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