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Inductance of Air Core Inductor Calculator

Formula & Equations for inductance of air Core inductor Calculator

Inductance of Air Core Inductor Calculator
Inductance of an Air core coil inductor

L = (Nx d2) / (18d + 40l) … μH


  • N = Number of turns,
  • d = Inductor Coil Diameter,
  • l = Inductor Coil Length.


The inductance of an air core coil inductor can be also calculated using the below equation.

L = (0.2 x d2x N2) / (3d + 9l =10b)

  • L = Inductance (in μH)
  • d = Diameter of the inductor coil (Inches)
  • l = Length of the indutor coil (inches)
  • b = Diameter of the coil winding wire (inches)
  • N = Total turns of wire

Note: You can also use Inductance of Straight Wire or Electrode calculator 

Enter value and click on calculate. Result will be displayed.

Enter value and click on calculate. Result will be displayed.

Enter Values:
Coil Length (l):           inches
Coil Diameter (d):          inches
Number of Turns (N):
Inductance (L):   μH

Related Calculators:

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One Comment

  1. Nucky P.rayanta Natalius says:

    nice generator thank you brother i like .. :)

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