The thickness of leather is measured in ounces, and each ounce equals 1/64 of an inch. So, a 4 ounce piece of leather would measure approximately 4/64”, or 1/16” thick. To accommodate variations in thickness across a split hide, leather weights are often given in ranges. For example, 6oz-7oz.
A lighter weight leather will be more flexible, while a heavier weight leather will be more durable. Below is a table to help you with the conversion:
|Leather Weight (Oz)||Thickness (mm)|