Inductor Energy Storage Calculator

Find the energy stored in an inductor.

Stored energy (J) 0.225

Formula: E = ½·L·I²

Step-by-step with your numbers:

1. Values used:

2. Inductance = 50 mH

3. Current = 3 A

5. Stored energy = 0.225J

Did we solve your problem today?

An inductor stores energy in its magnetic field while current flows.

The math behind it

E = ½·L·I². Energy grows with the square of current.

50 mH at 3 A → 0.225 J.

What happens if current is interrupted?

The stored energy can produce a large voltage spike (back-EMF).