Convert circular mil to square mil
Please provide values below to convert circular mil [circ mil] to square mil [mil^2], or Convert square mil to circular mil.
How to Convert Circular Mil to Square Mil
1 circ mil = 0.785398163246326 mil^2
Example: convert 15 circ mil to mil^2:
15 circ mil = 15 × 0.785398163246326 mil^2 = 11.7809724486949 mil^2
Circular Mil to Square Mil Conversion Table
| circular mil | square mil |
|---|
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 Mil
A square mil is a unit of area equal to the area of a square with sides measuring one mil (thousandth of an inch).
History/Origin
The square mil has been used primarily in engineering and manufacturing to measure very small areas, especially in fields like electronics and materials science, where precision at a microscopic scale is required.
Current Use
Today, the square mil is mainly used in the electronics industry to specify the cross-sectional area of wires and conductors, as well as in materials science for measuring tiny surface areas.