The “dozen dozen,” also known as a gross, is a fascinating unit of quantity that equals 144 items. This term comes from the French word “gros,” emphasizing its historical roots in trade and commerce. In a time when transactions relied heavily on simplicity, the gross provided an efficient means of bulk counting, especially in trading markets for items like eggs and screws.
Interestingly, the gross has persisted through centuries and still finds relevance today in certain industries and mathematics where large countable units simplify operations. Historically, it was also part of the duodecimal (base-12) counting system, which merchants found easier for divisions into halves, thirds, and quarters compared to our base-10 system. This unique unit highlights the historical significance of non-decimal counting methods that shaped modern commerce.
The Great Gross is a fascinating old-world unit of measure that might surprise many with its sheer scale. Representing 12 Gross (or 144 dozens), a Great Gross equals a whopping 1,728 individual items! Used historically in wholesale trade, especially during the medieval and early modern periods in Europe, this unit provided efficiency in large-scale commerce, allowing for easy calculation and transaction in bulk goods like candles, eggs, or textiles.
While not commonly used in modern trade, the Great Gross underscores historical trade practices and quantification in a world before digital analytics. Imagine being a merchant in a bustling market, selling your goods in Great Grosses—an image that conjures the vibrant rhythms of bygone eras and highlights the evolution of our measurement systems over time.
| Dozen Dozen | Great Gross |
|---|---|
0
doz-doz
|
0
gr-gr
|
0.5
doz-doz
|
0.0416667
gr-gr
|
1
doz-doz
|
0.0833333
gr-gr
|
1.5
doz-doz
|
0.125
gr-gr
|
2
doz-doz
|
0.166667
gr-gr
|
2.5
doz-doz
|
0.208333
gr-gr
|
3
doz-doz
|
0.25
gr-gr
|
3.5
doz-doz
|
0.291667
gr-gr
|
4
doz-doz
|
0.333333
gr-gr
|
4.5
doz-doz
|
0.375
gr-gr
|
5
doz-doz
|
0.416667
gr-gr
|
5.5
doz-doz
|
0.458333
gr-gr
|
6
doz-doz
|
0.5
gr-gr
|
6.5
doz-doz
|
0.541667
gr-gr
|
7
doz-doz
|
0.583333
gr-gr
|
7.5
doz-doz
|
0.625
gr-gr
|
8
doz-doz
|
0.666667
gr-gr
|
8.5
doz-doz
|
0.708333
gr-gr
|
9
doz-doz
|
0.75
gr-gr
|
9.5
doz-doz
|
0.791667
gr-gr
|
10
doz-doz
|
0.833333
gr-gr
|
10.5
doz-doz
|
0.875
gr-gr
|
11
doz-doz
|
0.916667
gr-gr
|
11.5
doz-doz
|
0.958333
gr-gr
|
12
doz-doz
|
1
gr-gr
|
12.5
doz-doz
|
1.04167
gr-gr
|
13
doz-doz
|
1.08333
gr-gr
|
13.5
doz-doz
|
1.125
gr-gr
|
14
doz-doz
|
1.16667
gr-gr
|
14.5
doz-doz
|
1.20833
gr-gr
|
15
doz-doz
|
1.25
gr-gr
|
15.5
doz-doz
|
1.29167
gr-gr
|
16
doz-doz
|
1.33333
gr-gr
|
16.5
doz-doz
|
1.375
gr-gr
|
17
doz-doz
|
1.41667
gr-gr
|
17.5
doz-doz
|
1.45833
gr-gr
|
18
doz-doz
|
1.5
gr-gr
|
18.5
doz-doz
|
1.54167
gr-gr
|
19
doz-doz
|
1.58333
gr-gr
|
19.5
doz-doz
|
1.625
gr-gr
|
20
doz-doz
|
1.66667
gr-gr
|
20.5
doz-doz
|
1.70833
gr-gr
|
21
doz-doz
|
1.75
gr-gr
|
21.5
doz-doz
|
1.79167
gr-gr
|
22
doz-doz
|
1.83333
gr-gr
|
22.5
doz-doz
|
1.875
gr-gr
|
23
doz-doz
|
1.91667
gr-gr
|
23.5
doz-doz
|
1.95833
gr-gr
|
24
doz-doz
|
2
gr-gr
|
24.5
doz-doz
|
2.04167
gr-gr
|
25
doz-doz
|
2.08333
gr-gr
|
25.5
doz-doz
|
2.125
gr-gr
|
26
doz-doz
|
2.16667
gr-gr
|
26.5
doz-doz
|
2.20833
gr-gr
|
27
doz-doz
|
2.25
gr-gr
|
27.5
doz-doz
|
2.29167
gr-gr
|
28
doz-doz
|
2.33333
gr-gr
|
28.5
doz-doz
|
2.375
gr-gr
|
29
doz-doz
|
2.41667
gr-gr
|
29.5
doz-doz
|
2.45833
gr-gr
|
30
doz-doz
|
2.5
gr-gr
|
30.5
doz-doz
|
2.54167
gr-gr
|
31
doz-doz
|
2.58333
gr-gr
|
31.5
doz-doz
|
2.625
gr-gr
|
32
doz-doz
|
2.66667
gr-gr
|
32.5
doz-doz
|
2.70833
gr-gr
|
33
doz-doz
|
2.75
gr-gr
|
33.5
doz-doz
|
2.79167
gr-gr
|
34
doz-doz
|
2.83333
gr-gr
|
34.5
doz-doz
|
2.875
gr-gr
|
35
doz-doz
|
2.91667
gr-gr
|
35.5
doz-doz
|
2.95833
gr-gr
|
36
doz-doz
|
3
gr-gr
|
36.5
doz-doz
|
3.04167
gr-gr
|
37
doz-doz
|
3.08333
gr-gr
|
37.5
doz-doz
|
3.125
gr-gr
|
38
doz-doz
|
3.16667
gr-gr
|
38.5
doz-doz
|
3.20833
gr-gr
|
39
doz-doz
|
3.25
gr-gr
|
39.5
doz-doz
|
3.29167
gr-gr
|
40
doz-doz
|
3.33333
gr-gr
|
40.5
doz-doz
|
3.375
gr-gr
|
41
doz-doz
|
3.41667
gr-gr
|
41.5
doz-doz
|
3.45833
gr-gr
|
42
doz-doz
|
3.5
gr-gr
|
42.5
doz-doz
|
3.54167
gr-gr
|
43
doz-doz
|
3.58333
gr-gr
|
43.5
doz-doz
|
3.625
gr-gr
|
44
doz-doz
|
3.66667
gr-gr
|
44.5
doz-doz
|
3.70833
gr-gr
|
45
doz-doz
|
3.75
gr-gr
|
45.5
doz-doz
|
3.79167
gr-gr
|
46
doz-doz
|
3.83333
gr-gr
|
46.5
doz-doz
|
3.875
gr-gr
|
47
doz-doz
|
3.91667
gr-gr
|
47.5
doz-doz
|
3.95833
gr-gr
|
48
doz-doz
|
4
gr-gr
|
48.5
doz-doz
|
4.04167
gr-gr
|
49
doz-doz
|
4.08333
gr-gr
|
49.5
doz-doz
|
4.125
gr-gr
|
50
doz-doz
|
4.16667
gr-gr
|
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