TheCircuitDogPower Design
Inductor Energy Calculator
Compute the approximate energy stored in an inductor as a function of inductance and current.
Enter the values above and select Calculate result.
Formula
E = ½ × L × I²
Worked example
A 1 mH inductor carrying 2 A stores ½ × 0.001 × 2² = 0.002 J (2 mJ).
Engineering notes
Core saturation, losses and nonlinear inductance can significantly change real energy storage.
Always compare calculated values with the actual component datasheet, tolerance stack-up, operating temperature and circuit conditions before applying them to hardware.