Transformer Calculator – Calculate Voltage and Turns Ratio

Transformer Calculator

Calculate secondary voltage from primary voltage and turns.

Formula

For an ideal transformer, Vp/Vs = Np/Ns.

Practical Example

Enter a small set of values from a known example and calculate the result. Check the magnitude and units, then adjust one variable to see how the formula responds.

Factors That Affect the Result

Measurement accuracy, units, constants, significant figures and formula assumptions affect scientific and engineering results. Chemistry calculations can also depend on balanced reactions, molar mass, concentration and experimental conditions.

Frequently Asked Questions

Should I keep units consistent?

Yes. Use the units requested by the calculator and convert values when necessary.

Can rounding affect the answer?

Yes. Significant figures and intermediate rounding can create small differences.

Should experimental results match exactly?

Not always. Real measurements can differ from idealized formula results.

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