The centilitre, a lesser-known unit, is often overshadowed by its more popular counterparts, the litre and millilitre. Primarily used in European countries, a centilitre (cL) is equal to 10 millilitres or one-hundredth of a litre. It’s a convenient measure for small volumes, especially in the context of beverages. For example, if you order a glass of wine in France or Switzerland, it’s common for the serving size to be expressed in centilitres, like 12.5 cL, which allows for precise portion control and is distinct from the typically larger measurements used elsewhere. This unit provides an ideal balance between too fine a granularity and too coarse a measurement, making it popular in the culinary world.
The “Glas” is an intriguing, though lesser-known, unit of volume, traditionally used in the Netherlands to measure wine and spirits. Dating back to the 1800s, one Glas was approximately equivalent to 150 milliliters, aligning closely with a standard modern wine glass. Its historical use highlights how cultures have tailored measurement systems to fit specific social practices, such as enjoying wine in communal settings, thus embodying the close relationship between cultural traditions and measurement systems.
While it has mostly fallen out of use today, the Glas provides a fascinating glimpse into historical consumption habits and the evolution of standard units. It reminds us that units of measurement are not merely mathematical constructs but are also deeply influenced by the lifestyles and practices of their time.
| Centilitres | Glas |
|---|---|
0
cl
|
0
glas
|
1
cl
|
0.05
glas
|
2
cl
|
0.1
glas
|
3
cl
|
0.15
glas
|
4
cl
|
0.2
glas
|
5
cl
|
0.25
glas
|
6
cl
|
0.3
glas
|
7
cl
|
0.35
glas
|
8
cl
|
0.4
glas
|
9
cl
|
0.45
glas
|
10
cl
|
0.5
glas
|
11
cl
|
0.55
glas
|
12
cl
|
0.6
glas
|
13
cl
|
0.65
glas
|
14
cl
|
0.7
glas
|
15
cl
|
0.75
glas
|
16
cl
|
0.8
glas
|
17
cl
|
0.85
glas
|
18
cl
|
0.9
glas
|
19
cl
|
0.95
glas
|
20
cl
|
1
glas
|
21
cl
|
1.05
glas
|
22
cl
|
1.1
glas
|
23
cl
|
1.15
glas
|
24
cl
|
1.2
glas
|
25
cl
|
1.25
glas
|
26
cl
|
1.3
glas
|
27
cl
|
1.35
glas
|
28
cl
|
1.4
glas
|
29
cl
|
1.45
glas
|
30
cl
|
1.5
glas
|
31
cl
|
1.55
glas
|
32
cl
|
1.6
glas
|
33
cl
|
1.65
glas
|
34
cl
|
1.7
glas
|
35
cl
|
1.75
glas
|
36
cl
|
1.8
glas
|
37
cl
|
1.85
glas
|
38
cl
|
1.9
glas
|
39
cl
|
1.95
glas
|
40
cl
|
2
glas
|
41
cl
|
2.05
glas
|
42
cl
|
2.1
glas
|
43
cl
|
2.15
glas
|
44
cl
|
2.2
glas
|
45
cl
|
2.25
glas
|
46
cl
|
2.3
glas
|
47
cl
|
2.35
glas
|
48
cl
|
2.4
glas
|
49
cl
|
2.45
glas
|
50
cl
|
2.5
glas
|
51
cl
|
2.55
glas
|
52
cl
|
2.6
glas
|
53
cl
|
2.65
glas
|
54
cl
|
2.7
glas
|
55
cl
|
2.75
glas
|
56
cl
|
2.8
glas
|
57
cl
|
2.85
glas
|
58
cl
|
2.9
glas
|
59
cl
|
2.95
glas
|
60
cl
|
3
glas
|
61
cl
|
3.05
glas
|
62
cl
|
3.1
glas
|
63
cl
|
3.15
glas
|
64
cl
|
3.2
glas
|
65
cl
|
3.25
glas
|
66
cl
|
3.3
glas
|
67
cl
|
3.35
glas
|
68
cl
|
3.4
glas
|
69
cl
|
3.45
glas
|
70
cl
|
3.5
glas
|
71
cl
|
3.55
glas
|
72
cl
|
3.6
glas
|
73
cl
|
3.65
glas
|
74
cl
|
3.7
glas
|
75
cl
|
3.75
glas
|
76
cl
|
3.8
glas
|
77
cl
|
3.85
glas
|
78
cl
|
3.9
glas
|
79
cl
|
3.95
glas
|
80
cl
|
4
glas
|
81
cl
|
4.05
glas
|
82
cl
|
4.1
glas
|
83
cl
|
4.15
glas
|
84
cl
|
4.2
glas
|
85
cl
|
4.25
glas
|
86
cl
|
4.3
glas
|
87
cl
|
4.35
glas
|
88
cl
|
4.4
glas
|
89
cl
|
4.45
glas
|
90
cl
|
4.5
glas
|
91
cl
|
4.55
glas
|
92
cl
|
4.6
glas
|
93
cl
|
4.65
glas
|
94
cl
|
4.7
glas
|
95
cl
|
4.75
glas
|
96
cl
|
4.8
glas
|
97
cl
|
4.85
glas
|
98
cl
|
4.9
glas
|
99
cl
|
4.95
glas
|
100
cl
|
5
glas
|
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