# circular mil

- a unit used principally for measuring the cross-sectional area of wires, being the area of a circle having a diameter of one mil.

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## Examples from the Web for circular mil

### Historical Examples

#### The circular-mil area of a circular area, such as the cross section of a wire, can be found by squaring the diameter.

Motion Picture Operation, Stage Electrics and IllusionsHenry C. Horstmann

# circular mil

- a unit of area of cross section of wire, equal to the area of a circle whose diameter is one thousandth of an inch. 1 circular mil is equal to 0.785 × 10 –6 square inch or 0.2 × 10 –9 square metre

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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