Gapped Core Inductance Calculator

The Gapped Core Inductance Calculator will calculate the Inductance per turn, Inductance and flux density per amp with full calculations and formula

Gapped Core Inductance Calculator
Gapped Core Inductance Results (detailed calculations and formula below)
The Inductance per turn2 (Al) is nH
The Inductance (L) is uH
The Flux Density per Amp (B/I) is gauss/A
Inductance per turn calculations
Al = 4π × Ae/Le/μr + Lg
Al = (4 &ties; ) × // +
Al = × / +
Al = /
Al =
Inductance calculations
L = Al × N2/1000
L = × 2/1000
L = × 2/1000
L = /1000
L =
Flux Density per Amp calculations
B/I = 0.4π × N/Le/μr + Lg
B/I = (0.4 × ) × // +
B/I = × / +
B/I = /
B/I =
Calculator Input Values
Core length (Le)
Gap area (Ae)
Gap length (Lg)
Relative permeability (μr)
Number of turns (N)
[ 54 Votes ]

Inductance per turn Formula and Calculation

Al = 4π × Ae/Le/μr + Lg

Inductance Formula and Calculation

L = Al × N2/1000

Flux Density per Amp Formula and Calculation

B/I = 0.4π × N/Le/μr + Lg