Carbon steel wire length

Question

I need to find out the carbon steel wire length in a 15 kg coil with 1 mm wire diameter. How can be done ?

Answer 1

Imagine the wire as a very tall cylinder of radius 0.0005 mm radius; calculate its volume using L as height of cylinder.

Also you will need the density of this material, in metric units.

Density = mass / volume. Be sure that you use compatible units, i.e. decide whether  to use cubic meters or something else.