Optimize the winding pattern of your specified inductor.

Please take a moment to register.

Choose which simulation you'd like to run.

Shape optimization

Fixed number of strands:

Filled bobbin

Choose a gap location option.

Gapped Centerpost Only

Outer Legs Gapped Only

All Legs Gapped (round centerpost)

All Legs Gapped (square centerpost)


Enter the parameters for this inductor. Click the name for help.

Bobbin Breadth mm
Bobbin Height mm
Window Breadth mm
Window Height mm
Gap Length mm


Hz kHz


Strand Diameter mm or
Number of Turns  
Packing Factor  
Current (RMS) A
Centerpost Diameter mm


This calculation may take several minutes. Please be patient.