Gapped Core Inductance Calculator

Gapped cores were used in low power transformers to control the inductance and increase the quality factor (Q) of air core inductors. This online calculator allows you to calculate the air core inductance in any applications.

Gapped Core Inductance Calculator

mm
mm
mm
uH
nH
gauss/A
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Formula:

Gapped Core Inductance Image
Al = (4π*Ae) / ((le/μr)+lg) L = Al*N210-3 B/I = (0.4π*N) / ((le/μr)+lg)
Where, Al = Inductance per turn2 N = Number of turns Ae = Gap area Le = Core length μr = Relative permeability Lg = Gap length B/I = Flux Density per Amp

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