You can calculate it
As I said the 4.5kg of wire will deposit around 3.5Kg of weld metal which will occupy a space of 445 cm3..
which you could equate to inches of weld if you knew.
1 how wide the bead is going to be
2 how high the bead will be
3 how deep will it penetrate
4 and how much is wasted in spatter
how big a weld?
A 4.5Kg reel will give you around 3.5Kg of weld.
You can calculate it
As I said the 4.5kg of wire will deposit around 3.5Kg of weld metal which will occupy a space of 445 cm3..
Al's talking sense,
Jim