Transformer Turns Ratio Calculator

Calculates the turns ratio needed to transform a given primary (non-reactive) impedance to a given secondary (non-reactive) impedance. Assumes lossless transformer.

Enter Primary Impedance (Zpri):      Ohms
Enter Secondary Impedance (Zsec): Ohms
(Do not enter voltages.)

The turns ratio is the square root of the impedance ratio,

i.e.,   Npri/Nsec = √Zpri/Zsec

or  Zpri/Zsec = (Npri/Nsec)2

The following entry is optional.

Enter number of turns (N). Select Primary or Secondary:



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