(can + a few centimeters to depreciate) 20 gauge ( wire diameter 0.8mm ) : 2 x 14cm( 5,5 inch) 28 gauge ( wire diameter 0.3mm ) : 40cm( 16 inch) ...
In the video I use for the ring 1.5cm in diameter : 20 gauge ( wire diameter 0,8mm ) : 25cm (10 inch) Wire length = number of ...