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Online Calculator
Inductor energy calculator
Enter inductance and current to calculate E = ½LI².
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Frequently asked questions
What is the formula for energy stored in an inductor?
E = ½LI².
What units does it use?
Millihenries for inductance and amps for current.
What unit returns?
Joules and millijoules.
Can the current be negative?
Yes. Energy depends on I².