Flat Spiral Coil:


Inner Diameter(DI):
Number of turns(N):
Wire Diameter (W):
Turn spacing(S):

*Move (TAB) to next field to update result

Outer Diameter(Do):*
Length of wire:
Inductance(L):* uH

The inductance of a flat spiral coil can be determined by entering its dimensions in the boxes above. The length of wire used is also calculated.

Moving between the boxes by clicking or using the 'TAB' button on your keyboard, will update the result.