Leather Weight & Thickness Conversion Chart

Leather thickness is an essential aspect of crafting fine leather goods. Choosing the right thickness can make or break a design. Leather thickness is measured using several unit types, including millimeters and ounces. Millimeters are the most common and simple thickness measurement. It is popular because it directly relates to the thickness of the leather. For example, if a hide is .2 mm thick, its thickness measurement is .2 mm. This makes calculating thickness (leather goods conversion) very easy. Alternatively, ounces are commonly used in the United States. One ounce of leather is equivalent to 1/64” (or 0.4mm). For example, nine ounces is equal to 9/64” inches thick.

There is often some variability in hides, so thickness measurements are typically given in ranges (i.e., 2-3 ounces). Variability can come from a variety of factors, such as the tanning process, the size of the hide, and how the hide is split.

Use our handy leather goods conversion chart to find the right thickness for your leather project!