inches
mm

1/32
0.8

1/16
1.6

3/32
2.4

1/8
3.2

5/32
4.0

3/16
4.8

inches
mm

1/4
6.4

5/16
7.9

3/8
9.5

7/16
11.1

1/2
12.7

9/16
14.3

inches
mm

5/8
15.9

11/16
17.5

3/4
19.1

13/16
20.6

7/8
22.2

15/16
23.8

inches
mm

1
25.4

1-1/8
28.6

1-1/4
38.1

1-1/2
20.6

1-3/4
44.5

2
50.8

inches
mm

2-1/4
57.2

2-1/2
63.5

3
76.2

4
101.6

5
127.0

6
152.4