basic

Inductor Energy Calculator

E = ½ · L · I² stored in an inductor.

Compute the energy stored in an inductor from its inductance and the current through it, using E = ½ · L · I².

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

mH
A

Results

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

E = ½ · L · I²

In depth

Compute the energy stored in an inductor from its inductance and the current through it, using E = ½ · L · I².