How many square mil in 1 circular mil?
The answer is 0.78539816339745.

We assume you are converting between **square mil** and **circular mil**.

You can view more details on each measurement unit:

square mil or
circular mil

The SI derived unit for **area** is the square meter.

1 square meter is equal to 1550003100.0062 square mil, or 1973525241.39 circular mil.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between square mil and circular mils.

Type in your own numbers in the form to convert the units!

1 square mil to circular mil = 1.27324 circular mil

5 square mil to circular mil = 6.3662 circular mil

10 square mil to circular mil = 12.7324 circular mil

15 square mil to circular mil = 19.09859 circular mil

20 square mil to circular mil = 25.46479 circular mil

25 square mil to circular mil = 31.83099 circular mil

30 square mil to circular mil = 38.19719 circular mil

40 square mil to circular mil = 50.92958 circular mil

50 square mil to circular mil = 63.66198 circular mil

You can do the reverse unit conversion from circular mil to square mil, or enter any two units below:

square mil to square megameter

square mil to stremma

square mil to square fermi

square mil to caballeria

square mil to hacienda

square mil to carreau

square mil to tunnland

square mil to square cubit

square mil to legua

square mil to tønde land

A square mil is defined as the area of a square with sides one mil in length.

The definition of a mil is as follows:

A milliradian, often called a mil or mrad, is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian).

Compass use of mils typically rounds 6283 to 6400 for simplification, but here we use the official definition.

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).

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