Knitting Needle Sizes & Conversion Chart
US 
0 
1 

2 

3 
4 
5 
6 
7 
8 
Metric (mm) 
2 
2.25 
2.5 
2.75 
3 
3.25 
3.5 
3.75 
4 
4.5 
5 
US 
9 
10 
101/2 
103/4 

11 
13 
15 
17 
19 
35 
50 
Metric (mm) 
5.5 
6 
6.5 
7 
7.5 
8 
9 
10 
12.75 
15 
19 
25 
Crochet Hook Sizes & Conversion Chart
US 
14 steel 
12 steel 
10 steel 
6 steel 
4 steel 
1 steel 
Metric (mm) 
.6 
.75 
1.00 
1.50 
1.75 
2.00 
US 
B/1 
C/2 
D/3 
E/4 
F/5 
G/6 
H/8 
I/9 
J/10 

K/10.5 
L/11 
M/13 
N/15 
P/16 
Metric (mm) 
2.00 
2.50 
3.00 
3.50 
4.00 
4.50 
5.00 
5.50 
6.00 
6.50 
7.0 
8.0 
9.0 
10.0 
11.5 
Other Useful Knitting & Crochet Conversions
1 inch 
2.54 cm 
multiply the number of inches you have by 2.54 to get centimeters, e.g. 10" x 2.54 = 25.4 cm 
1 cm 
.394 inches 
multiply the number of centimeters you have by .394 to get the equivalent inches 
1 foot 
.3048 meters 
multiply the number of feet you have by .3048 to get meters 
1 yard 
.9144 meters 
multiply the number of yards you have by .9144 to get meters 
1 meter 
1.0936 yards 
multiply the number of meters you have by 1.0936 to get yards 
1 gram 
.035 ounces 
multiply the number of grams you have by .035 to get ounces 
1 ounce 
28.57 grams 
multiply the number of ounces you have by 28.57 to get grams 
REMEMBER! If you are substituting yarn in a pattern, it is the total YARDAGE that is important NOT the weight of the yarn! For example, if the pattern calls for 10 50g/1.75oz (120m/131yds) balls of wool, you will need to buy at least 10 x 120m/131yds or 1200m/1310yds of the yarn you wish to use in order to have enough for your pattern. For a monthly free knitting or crochet pattern, sign up to receive our FREE Knitting or Crochet Newsletter.
