Transformer Calculator

Enter any three of primary voltage Vp, secondary voltage Vs, primary turns Np, and secondary turns Ns to compute the fourth using Vp / Vs = Np / Ns.

Free to use

Vp / Vs = Np / Ns
Secondary voltage Vs
24
V
Step-down transformer
Vp = 240 V · Vs = 24 V · Np = 1000 · Ns = 100

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Enter the other three values