Needle and Hook Sizes

Aluminum Crochet Hook Size Chart

US
Metric (MM)
B 2.5
C 3.0
D 3.25
E 3.5
F 4.0
G 4.25
7 4.5
H 5.0
I 5.5
J 6.0
K 6.5
L 8.0
M 9.0
N 10.0
P 15
Q 16
D 19

Steel crochet hook size chart

US
Metric (MM)
00 3.5
0 3.25
1 2.75
2 2.25
3 2.1
4 2.0
5 1.9
6 1.8
7 1.65
8 1.5
9 1.4
10 1.3
11 1.1
12 1.0
13 .85
14 .75

Knitting Needle Size Chart

US
Metric (MM)
#0 2mm
#1, #2 2.5, 3mm
#3, #4, #5 3.5mm
#6 4mm
#7 4.5mm
#8 5mm
#9 5.5mm
#10 6mm
#10.5 6.5mm
#11 8mm
#13 9mm
#15 10mm
#17 12.5mm
#19 15..5mm
#35 19mm
#50 25mm