BRETTUNS VILLAGE
LEATHER CRAFT SUPPLIES
Wholesale leather craft supplies

Leather
Thickness and Weight Conversions

Letters
Ounces 
(Oz)
Millimeters
(MM)
Inches
HHHH
6-6.5
2.4-2.6
<1/8
PHHH
5.75-6.25
2.3-2.5
>3/32
HHH
5.25-6
2.2-2.4
approx 3/32
PHH
5.25-5.75
2.1-2.3
<3/32
HH
5-5.5
2.0-2.2
>5/64
PH
4.75-5.25
1.9-2.1
>5/64
H
4.5-5
1.8-2.0
approx 5/64
PHM
4.25-4.75
1.7-1.9
<5/64
HM
4-4.5
1.6-1.8
<5/64
PM
3.75-4.25
1.5-1.7
>1/16
M
3.5-4
1.4-1.6
approx 1/16
PLM
3.25-4
1.3-1.5
<1/16
LM
3-3.5
1.2-1.4
>3/64
PL
2.75-3.25
1.1-1.3
approx 3/64
L
2.5-3
1.0-1.2
<3/64
PLL
2.25-2.75
0.9-1.1
>1/32
LL
2-2.5
0.8-1.0
approx 1/32
PLLL
1.75-2.25
0.7-0.9
<1/32

Irons (another way to gauge thickness)
6 oz is 4.5 iron
13-14 oz is 10 iron
16 oz  = 1/4" = 12 iron

As a general rule, each ounce of thickness is roughly equal to 1/64 of an inch in thickness.
As an example, 8 oz leather is 8/64" thick, which is the same as 1/8".
Some simple examples of thickness based on US coins:

A dime = 3 oz
A penny = 3.5 oz
A quarter = 4 oz
A nickel = 4.25 oz

So, dig this:  6 oz leather is like two dimes stacked one atop the other.
8 oz is two quarters stacked together.
12 oz is three quarters stacked together.



If you'd like to study some common leather terms or are having trouble falling asleep click here.
You can sound like an expert once you learn to sling the lingo.

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