Air Core Inductor Inductance Calculator

Calculate the inductance using: $$L={\mu }_0\frac{N^{2}A}{l}$$ where $A=\pi {\left(\frac{d}{2}\right)}^2$

* Enter the number of turns $N$, coil diameter $d$ (mm), and coil length $l$ (mm). Values are converted to SI units, and the result is displayed in microhenries (µH).