Knitting Needle and Crochet Hook Equivalents
Needle 0, 2mm hook
needle 1, 2.25MM, hook B-1
needle 2, 2.75 MM, hook C-2
needle 3, 3.25 MM, hook D-3
needle 4, 3.5 MM hook E-4
needle 5, 3.75 MM hook F-5
needle 6, 4 MM, hook G-6
needle 7, 4.5 MM, hook 7 (no letter)
needle 8, 5 MM, hook H-8
needle 9,5.5 MM, hook I-9
Needle 10, 6 MM, hook J-10
Needle 10-1/2, 6.5 MM, Hook K-10-1/2
Needle 11, 8 MM, hook L-11
Needle 13, 9MM, hook M/N-13
Needle 15, 10 MM, hook N/P-15