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Ideal transformer calculator
Relate voltages, currents, and the number of turns using the ideal transformer equations.
Ideal model without loss. In a real transformer there are losses and current limits.
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Frequently asked questions
What is the voltage ratio of an ideal transformer?
V₁/V₂ = N₁/N₂.
How are the currents related?
In the ideal model, I₁/I₂ = N₂/N₁.
Does it keep the power?
Yes in the ideal model, because the losses are ignored.
Does it serve to design a real transformer?
It is a mathematical reference. A real design must consider core, frequency, loss, temperature and electrical limits.