Explore our detailed wrench size chart that lists both standard and metric sizes, designed to help you accurately match the right wrench to the bolt diameter.
Standard and Metric Wrench Sizes
Bolt Diameter
Metric
Standard
1/8"
8mm
5/16"
3/16"
10mm
3/8"
1/4"
11mm
7/16"
5/16"
13mm
1/2"
3/8"
14mm
9/16"
7/16"
16mm
5/8"
1/2"
19mm
3/4"
9/16"
21mm
13/16"
22mm
7/8"
5/8"
24mm
15/16"
25mm
1"
3/4"
29mm
1-1/8"
32mm
1-1/4"
7/8"
34mm
1-5/16"
35mm
1-3/8"
1"
38mm
1-1/2"
41mm
1-5/8"
1-1/8"
43mm
1-11/16"
45mm
1-3/4"
1-1/4"
48mm
1-7/8"
1-3/8"
51mm
2"
1-1/2"
57mm
2-1/4"
1-5/8"
64mm
2-1/2"
1-3/4"
67mm
2-5/8"
70mm
2-3/4"
1-7/8"
75mm
2-15/16"
76mm
3"
2"
80mm
3-1/8"
83mm
3-1/4"
2-1/4"
89mm
3-1/2"
95mm
3-3/4"
2-1/2"
99mm
3-7/8"
102mm
4"
2-3/4"
108mm
4-1/4"
114mm
4-1/2"
3"
118mm
4-5/8"
3-1/4"
127mm
5"
3-1/2"
137mm
5-3/8"
140mm
5-1/2"
3-3/4"
146mm
5-3/4"
152mm
6"
165mm
6-1/2"
178mm
7"
Standard Socket Sizes Chart
Gain insights into standard socket sizes across various drive types, making your tool selection simpler and more efficient.
Standard Socket Sizes
1/4" Drive
3/8" Drive
1/2" Drive
3/4" Drive
1" Drive
5/32"
1/4"
3/8"
7/8"
1-5/8"
3/16"
5/16"
7/16"
15/16"
1-11/16"
7/32"
3/8"
1/2"
1"
1-3/4"
1/4"
7/16"
9/16"
1-1/16"
1-13/16"
9/32"
1/2"
19/32"
1-1/8"
1-7/8"
5/16"
9/16"
5/8"
1-3/16"
2"
11/32"
5/8"
21/32"
1-1/4"
2-1/8"
3/8"
11/16"
11/16"
1-5/16"
2-3/16"
7/16"
3/4"
3/4"
1-3/8"
2-1/4"
1/2"
13/16"
25/32"
1-7/16"
2-3/8"
9/16"
7/8"
13/16"
1-1/2"
2-1/2"
15/16"
7/8"
1-5/8"
2-5/8"
1"
15/16"
1-11/16"
2-3/4"
1"
1-3/4"
2-15/16"
1-1/16"
1-13/16"
3"
1-1/8"
1-7/8"
3-1/8"
1-3/16"
2"
1-1/4"
2-1/8"
1-1/2"
2-3/16"
2-1/4"
Standard-to-Metric Conversion Chart
This handy conversion chart bridges the gap between metric and standard sizes, providing a quick reference to help prevent measurement errors.
