The standard socket size is determined by the opening on a socket wrench, designed to fit a specific nut or bolt size. Common sizes include 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, and 1 inch, with additional sizes available for specialized applications.

Standard socket sizes are measured by the socket wrench’s opening and are crafted to accommodate various nut or bolt sizes. Typically, the sizes range from 1/4 inch to 1 inch, covering most general needs, with additional specific sizes for more unique tasks.

Consult the Socket Size Chart provided in this guide to find the appropriate socket size based on metric or imperial measurements. Additionally, trial and error can be used to confirm the correct fit before applying torque.

Some of the common SAE socket sizes you may find on the chart include 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, and 1 inch. These sizes correspond to the drive size of the socket, with 1/4 inch being the smallest and 1 inch being the largest.

Whether you just got your first socket set, want to know which sizes you’re missing in your socket organizer, or simply need a quick reference to see if a metric size converts to SAE, check out the tables below to see the all socket sizes from smallest to largest.