This series inductance calculator finds the total inductance of two or more inductors wired in series. Enter your inductor values above for the combined total.
Formula
Ltotal = L₁ + L₂ + L₃ + ...
This assumes no mutual coupling between the inductors.
Example
10, 20, and 30 µH in series = 60 µH.
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Frequently Asked Questions
How do I calculate series inductance?
Add the inductance values together, just like resistors in series, assuming no coupling.
Does coupling change series inductance?
Yes. Magnetic coupling adds or subtracts a mutual inductance term depending on winding orientation.
What are the units?
Henries, usually microhenries for RF and power inductors.