Single-Phase Transformer Designer

Enter known parameters; results update live.

Quick presets:

Inputs

Enter known parameters.

Results

Magnetic
Peak flux —Wb
Required core area —cm²
Approx. primary turns —turns
Windings
Primary turns —turns
Secondary turns —turns
Turns ratio —
Electrical
Primary current —A
Secondary current —A
Primary wire area —mm² · —mm · AWG —
Secondary wire area —mm² · —mm · AWG —
Losses & Thermal
Copper loss (I²R) —W
Iron loss @Tcore —W
Iron loss @20°C —W
Est. temperature rise —K
Copper mass —kg
Window winding layout
Primary winding Secondary winding
Efficiency —%
Impedance
Short-circuit impedance (%Z) —%
Resistive component (%R) —%
Leakage reactance (%X) —%