Square mil explained

square mil
Standard:	Imperial and US customary measurement systems
Quantity:	Area
Symbol:	mil^2
Units1:	Imperial and US customary
Units2:	SI units

A square mil is a unit of area, equal to the area of a square with sides of length one mil. A mil is one thousandth of an international inch. This unit of area is usually used in specifying the area of the cross section of a wire or cable.

Equivalence to other units of area

1 square mil is equal to:

• 1 millionth of a square inch (1 square inch is equal to 1 million square mils)
• 1E-06in2
• about 1.273 circular mils (1 circular mil is equal to about 0.7854 square mils). and

See also

• Circular mil
• Area of a circle