# Crochet

## Hook Sizes

Crochet hooks come in a standard set of sizes, always measured in millimeters, and often assigned a corresponding size letter and number. Be careful not to confuse the mm size, and the hook size.

 2.25 mm B-1 2.5 mm 2.75 mm C-2 3.125 mm D 3.25 mm D-3 3.5 mm E-4 3.75 mm F-5 4 mm G-6 4.25 mm G 4.5 mm 7 5 mm H-8 5.25 mm I 5.5 mm I-9 5.75 mm J 6 mm J-10 6.5 mm K-10 ½ 7 mm 8 mm L-11 9 mm M-13 10 mm N-15 11.5 mm P-16 12 mm 15 mm P/Q 15.75 mm Q 16 mm Q 19 mm S 25 mm T/U/X 30 mm T/X