I only posted the first link of google for 1 circular mil = .001"
But to answer another thread - they make Square Wire !
A Dime is Ten mils, ten dimes is an inch, what my friend is saying ...>>
We just had the argument / conversation about what the size limit stamp means,
welp ... manufactures state the limit, I don't think they made any bad assumptions
on the type of insulation, I'm sure its a mean size though.
Just cause I can, I'm posting another link to muddy the water... from
here
| - The circular mil is a unit of
area used especially when denoting
|the cross-sectional size of a wire or
cable. It is the equivalent area of a
|circle whose diameter is 0.001 (10-3) inch, or approximately 0.7854
|millionths of a square inch (or 2.5 x 10-7 times pi).
|In plane geometry, area always varies in direct proportion to the square
|of the linear dimension. Thus, if wire A is twice the diameter of wire B,
|then wire A has four times the cross-sectional area, in circular mils, of B.
|If wire C is 1/5 of the diameter of wire D, then C has 1/25 the cross-
|sectional area, in circular mils, of D. In this respect, the circular mil is like
|any other unit for measurement of area.
|Because the circular mil is, as its name implies, based on a circular unit of
|measure rather than a rectangular unit, conversions between circular mils
|and square units such as the
meter squared (m2) or centimeter squared
(cm2) can be awkward. To convert circular mils approximately to meters
|squared (m2), multiply by 5.066 x 10-10. Conversely, multiply by 1.974 x
|109. To convert circular mils approximately to centimeters squared
| (cm2), multiply by 5.066 x 10-6. Conversely, multiply by 1.974 x 105.
Can you develop the A=B/C problem yet, Chris ?