The ounce is a fascinating unit with a rich history, dating back to Ancient Rome. The term “ounce” is derived from the Latin word “uncia,” meaning “one-twelfth.” Originally used by the Romans as a unit of weight, an uncia represented one-twelfth of a Roman pound. The versatility of the ounce becomes even more intriguing when you consider its application in both weight and volume measurements today.
In the realm of precious metals, such as gold and silver, the term “troy ounce” is used, which is approximately 10% heavier than the customary ounce. Meanwhile, in British imperial and American systems, an ounce can denote both dry and liquid measurements. The fluid ounce, however, differs slightly between the UK and the US, with the UK fluid ounce being approximately 28.4 milliliters and the US at about 29.6 milliliters. This multifaceted unit highlights how historical roots continue to influence modern measurement systems worldwide.
The “ton” has different meanings depending on where you are in the world. In the United States, the short ton weighs 2,000 pounds, whereas in the United Kingdom, the long ton is slightly heavier at 2,240 pounds. Meanwhile, the metric ton (or tonne) used in most countries around the globe weighs exactly 1,000 kilograms or 2,204.62 pounds, which aligns with the International System of Units.
Interestingly, the term “ton” originated from “tun,” a large cask used to measure wine or ale’s capacity in medieval times. This historical connection signifies not just weight but also volume, reflecting the ton’s versatile application throughout history. Whether measuring ship’s cargo or carbon emissions, the ton continues to be a crucial unit in various fields.
Ounces | Tons |
---|---|
0
oz
|
0
t
|
1
oz
|
0.00003125
t
|
2
oz
|
0.0000625
t
|
3
oz
|
0.00009375
t
|
4
oz
|
0.000125
t
|
5
oz
|
0.00015625
t
|
6
oz
|
0.0001875
t
|
7
oz
|
0.00021875
t
|
8
oz
|
0.00025
t
|
9
oz
|
0.00028125
t
|
10
oz
|
0.0003125
t
|
11
oz
|
0.00034375
t
|
12
oz
|
0.000375
t
|
13
oz
|
0.00040625
t
|
14
oz
|
0.0004375
t
|
15
oz
|
0.00046875
t
|
16
oz
|
0.0005
t
|
17
oz
|
0.00053125
t
|
18
oz
|
0.0005625
t
|
19
oz
|
0.00059375
t
|
20
oz
|
0.000625
t
|
21
oz
|
0.00065625
t
|
22
oz
|
0.0006875
t
|
23
oz
|
0.00071875
t
|
24
oz
|
0.00075
t
|
25
oz
|
0.00078125
t
|
26
oz
|
0.0008125
t
|
27
oz
|
0.00084375
t
|
28
oz
|
0.000875
t
|
29
oz
|
0.00090625
t
|
30
oz
|
0.0009375
t
|
31
oz
|
0.00096875
t
|
32
oz
|
0.001
t
|
33
oz
|
0.00103125
t
|
34
oz
|
0.0010625
t
|
35
oz
|
0.00109375
t
|
36
oz
|
0.001125
t
|
37
oz
|
0.00115625
t
|
38
oz
|
0.0011875
t
|
39
oz
|
0.00121875
t
|
40
oz
|
0.00125
t
|
41
oz
|
0.00128125
t
|
42
oz
|
0.0013125
t
|
43
oz
|
0.00134375
t
|
44
oz
|
0.001375
t
|
45
oz
|
0.00140625
t
|
46
oz
|
0.0014375
t
|
47
oz
|
0.00146875
t
|
48
oz
|
0.0015
t
|
49
oz
|
0.00153125
t
|
50
oz
|
0.0015625
t
|
51
oz
|
0.00159375
t
|
52
oz
|
0.001625
t
|
53
oz
|
0.00165625
t
|
54
oz
|
0.0016875
t
|
55
oz
|
0.00171875
t
|
56
oz
|
0.00175
t
|
57
oz
|
0.00178125
t
|
58
oz
|
0.0018125
t
|
59
oz
|
0.00184375
t
|
60
oz
|
0.001875
t
|
61
oz
|
0.00190625
t
|
62
oz
|
0.0019375
t
|
63
oz
|
0.00196875
t
|
64
oz
|
0.002
t
|
65
oz
|
0.00203125
t
|
66
oz
|
0.0020625
t
|
67
oz
|
0.00209375
t
|
68
oz
|
0.002125
t
|
69
oz
|
0.00215625
t
|
70
oz
|
0.0021875
t
|
71
oz
|
0.00221875
t
|
72
oz
|
0.00225
t
|
73
oz
|
0.00228125
t
|
74
oz
|
0.0023125
t
|
75
oz
|
0.00234375
t
|
76
oz
|
0.002375
t
|
77
oz
|
0.00240625
t
|
78
oz
|
0.0024375
t
|
79
oz
|
0.00246875
t
|
80
oz
|
0.0025
t
|
81
oz
|
0.00253125
t
|
82
oz
|
0.0025625
t
|
83
oz
|
0.00259375
t
|
84
oz
|
0.002625
t
|
85
oz
|
0.00265625
t
|
86
oz
|
0.0026875
t
|
87
oz
|
0.00271875
t
|
88
oz
|
0.00275
t
|
89
oz
|
0.00278125
t
|
90
oz
|
0.0028125
t
|
91
oz
|
0.00284375
t
|
92
oz
|
0.002875
t
|
93
oz
|
0.00290625
t
|
94
oz
|
0.0029375
t
|
95
oz
|
0.00296875
t
|
96
oz
|
0.003
t
|
97
oz
|
0.00303125
t
|
98
oz
|
0.0030625
t
|
99
oz
|
0.00309375
t
|
100
oz
|
0.003125
t
|
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