Leather Weight / Thickness Conversion Chart

Millimeter Thickness

Inch Thickness

Ounce Thickness

.8 – 1.2 mm

1/32" – 3/64"

2 – 3 oz

1.2 – 1.6 mm

3/64" – 1/16"

3 – 4 oz

1.6 – 2.0 mm

1/16" – 5/64"

4 – 5 oz

2.0 – 2.4 mm

5/64" – 3/32"

5 – 6 oz

2.4 – 2.8 mm

3/32" – 7/64"

6 – 7 oz

2.8 – 3.2 mm

7/64" – 1/8"

7 – 8 oz

3.2 – 3.6 mm

1/8" – 9/64"

8 – 9 oz

3.6 – 4.0 mm

9/64"– 5/32"

9 – 10 oz

4.0 – 4.4 mm

5/32" – 11/64"

10 – 11 oz

4.5 - 5.4mm

1/4" - 14/64"

12- 13 oz

5.5 - 6.4mm

15/64" - 19/64"

14 - 15 oz

6.5 - 7.4mm

20/64" - 5/8"

16 - 17 oz