Reluctance Calculator

The magnetic reluctance is used in analyzing magnetic circuits. It is basically used for measuring the resistance presented to magnetic flux in any of the magnetic circuits.

Formula to calculate reluctance of an uniform magnetic circuit is given by:

Reluctance Formula

R = Reluctance [Ampere-turns/weber - At/Wb]
l = Circuit length [meters]
μ0 = Permeability of vacuum [4 π x 10-7 Hm-1]
μr = Relative magnetic permeability (dimensionless)
A = Circuit's cross-sectional area [m2]

In our online reluctance calculator below, enter the parameters in the respective input boxes and click calculate button to find the answer.

Circuit Length (l): [m]
Relative Magnetic Permeability (μr):
Circuit's Cross-sectional Area (A): [m2]
Reluctance (R): [At/Wb]

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