🔗 Inductors in Parallel Calculator
Find the total inductance of up to three inductors connected in parallel, assuming no mutual coupling between them.
What this calculator does
When inductors are connected in parallel (with no magnetic coupling between them), the total inductance is always lower than the smallest individual inductor, similar to resistors in parallel.
The formula used
For inductors in parallel, 1/Ltotal = 1/L1 + 1/L2 + 1/L3 and so on. Enter your inductor values (leave any you don’t need at zero) and the calculator combines them using this reciprocal-sum rule.
This calculation assumes the inductors are far enough apart, or oriented so that they don’t magnetically couple with each other; coupled inductors need a more advanced mutual-inductance formula. This tool is for general electronics planning and education.