Simplify Your Electrical Calculations with the Ideal Transformer Calculator

10/13/2025

The Ideal Transformer Calculator is a free tool available on our website!

This online tool allows you to quickly calculate ideal transformer parameters based on primary and secondary windings, voltage, and current. In the ideal transformer all the magnetic field from the primary coil passes through the secondary coil, i.e. the ideal transformer has no power loss.

Whether you are a student learning transformer basics or an engineer working on practical designs, this calculator saves time and prevents errors in manual calculations.

Key Features:

• Input any two known values (windings, voltages, or currents);
• Instantly calculate the remaining transformer parameters;
• Easy-to-use interface with unit selection;
• Suitable for academic projects, labs, and professional tasks.

Start using the calculator here:
Ideal Transformer Calculator

Practical use

Example 1: Student Project

A student is studying a step-down transformer.

• Primary windings: 500 turns;
• Secondary windings: 100 turns;
• Primary voltage: 230 V.

The calculator shows the secondary voltage will be 46 V, which is perfect for a low-voltage experiment.

Example 2: Practical Engineering Task

An engineer needs to design a step-up transformer for measurement equipment.

• Primary voltage: 110 V;
• Secondary voltage: 220 V;
• Primary current: 2 A.

The calculator finds the secondary current: 1 A, ensuring proper load selection.

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