|AWG, American Wire Gauge, Brown & Sharpe|
|Copper vs Aluminum|
|Temperature Coefficients of Resistance|
Resistance megaConverter #29
Introduction and Overview
This megaConverter is intended to provide a number of measurements for various types and sizes of conductive wire. It provides pounds weight per 1000 feet, which is a standard size roll of wire, kilograms per kilometer, diameter in millimeters and inches, cross-sectional area in square millimeters and square inches, and the area in circular mils, which is the area of a circle one mil (.001 inch) in diameter. It also gives the resistance in Ohms per mile and Ohms per kilometer for both Aluminum wire and Copper wire (see below). The Ohm field is per mile because when wire is strung up on high lines, that is a handier way to consider distance than 1000s of feet. The wire density also changes between Aluminum and Copper. Metric measure of wire is not given as a gauge but simply as the square millimeters of the wire. This converter will allow users of metric specified wire to interpolate between the AWG numbers to get approximate resistance and weight of that wire.
To learn more about conductive wire and its properties see "Marks Standard Handbook for Mechanical Engineers," available in most libraries.
* Much of our written history still refers to things in common units. The Bible does not refer to meters or kilograms, but to cubits and stadia, or shekels and drachma. Wouldn't it be nice to know what they were talking about way back then? Now you can use megaConverter! This megaConverter is specifically for kitchen volume measurements commonly used today in the US, Britain, and by the SI system. See megaConverters Ancient Volume #36 and Foreign Volume #37 for volume conversions common in ancient times and foreign countries. For a more complete listing of ancient, foreign, and obsolete measures, download our 'megaSpreadsheet' of conversions in MS Excel format.
For the most comprehensive treatment of measurements, find "NTC's Encyclopedia of International Weights & Measures" by William D. Johnstone at your local library.
Copper vs Aluminum
Temperature Coefficients of Resistance
Note: Because of round-off errors, converting from very large units to very small units or vice-versa may not be accurate (or practical). Conversion factors can be found by converting a quantity of 1 unit to another unit several steps above or below the first. You may need to string several conversion factors together to find the factor from a very large unit to a very small unit, and then you can use a calculator with sufficient digits to find your answer.