Tesla flat spiral coil calculator - 3.8 out of 5 based on 6 votes
Rating 3.83 (6 Votes)

Online calculators

Tesla flat spiral coil:

This calculator uses J.C.Maxwell's coaxial circular filaments approximation, as well as multilayer inductor calculator. You can download the cross-platform app Coil64 to calculate Tesla flat spiral coil offline.  ENTER THE INPUT DATA:
 Select units: mm/cmmil/inch AWG → 000000000012345678910111213141516171819202122232425262728293031323334353637383940 SWG → 7/06/05/04/03/02/001234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

 L = mHμHnH – Required inductance Di – Coil Inner Diameter d – Wire Diameter s – Gap between turns

RESULT:
 N = – Number of turns Do – Coil Outer Diameter Lth – Length of wire

This calculator also can be suitable for the calculation of spider coil. There is the handbook formula for calculating flat coil  (Harold A. Wheeler):

L (uH) = r^2 * N^2 / (8 * r + 11 * w)

• L = Inductance µH
• r = average winding radius in inches
• w = width of winding (in inches)
• N = number of turns

This formula is used in the calculators linking below.

Another calculators:

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