## Measurement unit: circular mil

**Full name:** circular mil

**Plural form:** circular mils

**Category type:** area

**Scale factor:** 5.067074790975E-10

## SI unit: square meter

The SI derived unit for area is the square meter.

1 square meter is equal to 1973525241.39 circular mil.

Valid units must be of the **area** type.

You can use this form to select from known units:

## Definition: Circular mil

A circular mil is a unit of area, equal to the area of a circle with a diameter of one mil (one thousandth of an inch). It is a convenient unit for referring to the area of a wire with a circular cross section, because the area in circular mils can be calculated without reference to pi (π).

## Sample conversions: circular mil