Via Inductance

Via inductance is calculated as:

L \approx 2 h [\ln (\frac{4 h}{d}) + 1] n H

Where,

$L$: Inductance of the via [nH]
$H$: Length of via [cm]
$d$: Diameter of via [cm]

Consider a power supply pin of a component that goes through a via to the power plane of a 0.157 cm thickness board, the diameter of the via is 0.041 cm:

L = 2(0.157){ln(4(0.157)/0.041)+1} = 1.2nH