Convert circular mil to square mile

Please provide values below to convert circular mil [circ mil] to square mile [mi^2], or Convert square mile to circular mil.




How to Convert Circular Mil to Square Mile

1 circ mil = 1.95640851391501e-16 mi^2

Example: convert 15 circ mil to mi^2:
15 circ mil = 15 Γ— 1.95640851391501e-16 mi^2 = 2.93461277087252e-15 mi^2


Circular Mil to Square Mile Conversion Table

circular mil square mile

Circular Mil

A circular mil is a unit of area used to measure the cross-sectional size of wires, representing the area of a circle with a diameter of one mil (one thousandth of an inch).

History/Origin

The circular mil originated in the electrical industry to specify wire sizes before the adoption of metric units. It has been a standard measurement in North America for wire gauge sizes for many decades.

Current Use

Circular mils are still used today in the electrical industry to specify wire cross-sectional areas, especially in North America, although metric units are increasingly common.


Square Mile

A square mile is a unit of area measurement equal to the area of a square with sides of one mile each.

History/Origin

The square mile has been used historically in the United States and the United Kingdom for land measurement, especially in surveying and real estate, originating from the imperial system of units.

Current Use

Today, the square mile is primarily used in the United States and the UK for measuring land areas, such as in real estate, geography, and environmental studies, within the context of the 'Area' converter in 'Common Converters'.