Transformer Turns Ratio Calculator

Calculate secondary voltage and turns ratio for an ideal transformer.

Result

Complete the fields to calculate.

Formula and method

Vs / Vp = Ns / Np

Important assumptions

The result models an ideal transformer and omits regulation, losses, and insulation limits.

Frequently asked questions

Does the calculation run locally?

Yes. Values are processed in your browser and are not sent to a server.

Can I use it for a real installation?

Use it as an educational reference and verify components, tolerances, safety, and applicable code with technical documentation or a qualified person.

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