Ideal Transformer Calculator

Your details

Choose the quantity you want to calculate.
RMS voltage applied to the primary winding.
V
Number of wire turns on the primary winding.
turns
Number of wire turns on the secondary winding.
turns
Secondary voltage (V2)Step-down
24V

Voltage across the secondary winding

Turns ratio (a = N1/N2)10
Primary voltage (V1)240V
ConfigurationStep-down (N1 > N2, voltage reduced)
Primary voltage (V)240
Secondary voltage (V)24

10.00:1 step-down transformer - secondary voltage is 24.00 V.

  • The turns ratio 10.000 steps the voltage down from 240.00 V to 24.00 V.
  • Real transformers have winding resistance and core losses, so efficiency is typically 95-99% rather than 100%.

Next stepTry switching solve mode to "Reflected impedance" to check how your secondary load appears to the power source.

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