Very confusing app

Definitely not user friendly and very little instruction. Having a hard time figuring out how to just say I have a particular gauge wire, how many wraps of it do I need and around what size diameter I should be making the coils. Not sure what the second column numbers are either? Not labelled or explained very will. Maybe be able to figure it out with some time but right off the bat not very useful.

DannyBorneo about Coil Calculator