Single strand copper wire question...

[metalstacker]

I have some old single strand copper core electrical wire that I came across. Looks like its about 8-10gage. I'm wondering if anyone can tell me about how much a foot of wire usually weighs? It would be much easier for me to calculate by foot since I don't own a scale :/

[jmaii]

Looks like its about 8-10gage. I'm wondering if anyone can tell me about how much a foot of wire usually weighs?

If it's solid it is most likely 10 gauge. A quick estimate:

• 10 gauge = 2.59 mm diameter
• 2.59 mm = 0.259 cm
• cylinder volume = πr²h
• volume of one cm of wire = π * 0.1295² * 1 = 0.0527 cm³
• density of copper = 8.96 g/cm³
• mass of one cm of wire = 0.472 g
• weight of one foot = 0.5075 oz
• length of one pound of wire = 31 feet 6 inches

You could also "cheat" and lookup the weight on a gauge chart ... or buy a scale for $10.

[hobo finds]

good chart here.. http://www.interfacebus.com/Copper_Wire_AWG_SIze.html

[jmaii]

good chart here.. http://www.interfacebus.com/Copper_Wire_AWG_SIze.html

That chart has 31.82 feet for one pound of 10 gauge, not far from my calculation of 31.5; math always finds a way to make me smile.

[smackvay]

never heard of caluculating weight by the foot. lol