sumivo

Inductor Energy Calculator

Calculate stored magnetic energy from inductance and current.

01 / INPUTS

H
A

02 / RESULT

STORED ENERGY

0.2 J

Stored energy
0.2 J

Calculation trace

  1. 0.5 × 0.1 H × 2² A = 0.2 J
    0.2 J
    Stored energy
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How it works

For inductance L in henries and current I in amperes, the tool computes the magnetic-field energy as E = ½L·I² joules.

Assumptions & limits

  • Models an ideal, linear inductor with constant inductance; it does not account for winding resistance, core loss or magnetic saturation.
  • Inductance and current must both be positive finite numbers.
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FAQ

What happens to stored energy if current doubles?
With inductance unchanged, doubling current makes the energy four times as large because energy is proportional to I².
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