Engineering

Inductor Energy

Calculate the stored magnetic energy and flux linkage of an ideal inductor from inductance and current.

01Input and settings

The calculation runs in your browser. You can use the tool without installing software.

02Result

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Enter your values or load the example to see the result here.

About this tool: Inductor Energy

Calculate the stored magnetic energy and flux linkage of an ideal inductor from inductance and current.

Inductance is entered in millihenries and current in amperes. The result is energy in joules and flux linkage λ=LI in webers, not the flux per turn of a specific winding. The model assumes constant inductance and ignores saturation and winding resistance.

How the calculation works

E = L·I²/2; λ = L·I

Worked example

Inductance
10
Current, A
2
E = 0.02 J; λ = 0.02 Wb

Questions and answers

What does this tool do?

Calculate the stored magnetic energy and flux linkage of an ideal inductor from inductance and current. Inductance is entered in millihenries and current in amperes. The result is energy in joules and flux linkage λ=LI in webers, not the flux per turn of a specific winding. The model assumes constant inductance and ignores saturation and winding resistance.

What affects precision and input format?

Nominal ideal components are used; component losses and tolerances are excluded.

Where are the calculations performed?

The calculation runs in your browser. You can use the tool without installing software.

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