crochet hook size (MM) selector

 
 
 
 
 

Conversion Chart

Imperial 6 - 5 - - 4 3 2
USA 14 13 12 - - 10 8 7 4
MM 0.6 0.70 0.75 0.85 0.90 1 1.25 1.5 1.75
g
Imperial 14 13 12 11 10 9 8 7 6
USA - B/1 - - D/3 E/4 G/6 - H/8
MM 2 2.25 2.5 3 3.25 3.5 4 4.5 5
h
Imperial 5 4 3 2 - 0 00 000 00
USA l/9 J/10 K10½ - - L/11 M/13 N/15 13
MM 5.5 6 6.5 7 7.5 8 9 10 9