Utilize this web-based calculator to determine the inductance of an Air Core Flat Spiral. Calculate the Air Core Flat Spiral Inductance using the provided input parameters.
This online electrical calculator empowers you to calculate the inductance of a flat spiral with an air core.
Air Core Flat Spiral Inductance formula
![\[Air\ Core\ Flat\ Spiral\ Inductance = \frac{(4.921 \times N^2(d_1+d_2)^2)}{(15d_1-7d_2)} \times dimension\]](https://x-calculator.com/wp-content/ql-cache/quicklatex.com-87598b2eb886479e35e8df8a88041d3b_l3.png "Rendered by QuickLaTeX.com")
where:
- N = the number of turns
- d1=outer diameter
- d2=inner diameter
- if the dimension unit is mm then dimension=1. if the dimension unit is mils then the dimension is 0.0254
