Multilayer air core inductor design calculator

info The formula used in this calculation is from the famous Wheelers approximations which is accurate to <1% if the cross section is near square shaped. L (uH) =31.6*N^2* r1^2 / 6*r1+ 9*L + 10*(r2-r1) where… L(uH)= Inductance in microHenries N = Total Number of turns r1 = Radius of the inside of the coil in meters r2 = Radius of the outside of the coil in meters L = Length of the coil in meters

Please note that the diameter is measured from center of wire trough
center of the coil and to center of the wire on the opposite side.

If it may happen that you find this multilayer aircoil calculator interesting for others, please consider sharing it.
Please rate this article: [ratings]