Source: wikibot/circular-mil
= Circular mil
{wiki=Circular_mil}
A circular mil is a unit of area used primarily in the electrical industry to describe the cross-sectional area of a conductor, such as a wire. It is defined as the area of a circle with a diameter of one mil (one thousandth of an inch). To calculate the area in circular mils, the formula is: \\\[ \\text\{Area (circular mils)\} = \\frac\{D^2\}\{0.