This parallel inductance calculator finds the equivalent inductance of inductors wired in parallel. Enter your values above for the combined total.
Formula
1 ÷ Ltotal = 1/L₁ + 1/L₂ + 1/L₃ + ...
Example
10, 20, and 30 µH in parallel: 1/L = 0.1 + 0.05 + 0.0333 → L = 5.45 µH.
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Frequently Asked Questions
How do I calculate parallel inductance?
Add the reciprocals of each inductance, then take the reciprocal of the sum, like parallel resistors.
Is parallel inductance smaller than each inductor?
Yes, always lower than the smallest inductor in the group.
Does this ignore coupling?
Yes. It assumes the inductors are magnetically independent.