How to calculate ilvl

[Ace360]

I wish to know how to calculate ilvl. I believe it has to do with qlvl (id hope) but i cant find it ,in the guide, where it tells you how to calculate ilvl. Maybe i missed it, idk.

<div align="right">Any help would be appreciated.</div>

EDIT VVV

If anyone does know can they show a step by step on a few items, so that it covers all the basics.

Thanks