The humble teaspoon, while commonly found in kitchen drawers today, has its origins as a unit of measure dating back to the 17th century. Originally used to denote a small, practical serving size for tea, its measurement varied widely until it was standardized in the 19th century. In modern culinary and pharmaceutical fields, a teaspoon is typically equivalent to 5 milliliters or approximately 1/6 of a fluid ounce.
Interestingly, the reason behind this specific measurement standardization was to ensure the consistency needed for medical dosing, underscoring the spoon’s importance beyond culinary purposes. Teaspoons are not just handy for adding sugar to your tea; they play an integral role in recipes and medication precision, highlighting the intersection of culinary art and science.
The litre (or liter) is a fascinating metric unit of volume predominantly used for measuring liquids. Curiously, while it is synonymous with the metric litre, it is not an official unit in the International System of Units (SI); instead, it is accepted for use with the SI due to its practicality. Originally defined as the volume of one kilogram of water at maximum density, the litre provides a tangible connection between volume and weight, emphasizing the interrelationship of these physical properties.
Despite its widespread application in everyday life, such as in beverages and fuels, the litre’s versatility extends beyond terrestrial boundaries. It plays a crucial role in astrobiology, where scientists explore celestial bodies for signs of water, often in volumes measured by litres or their scientific counterpart, cubic decimetres. Whether quenching thirst or exploring the cosmos, the litre connects us to the natural world in multifaceted ways.
| Teaspoons | Litres |
|---|---|
0
tsp
|
0
l
|
1
tsp
|
0.00492892
l
|
2
tsp
|
0.00985784
l
|
3
tsp
|
0.0147868
l
|
4
tsp
|
0.0197157
l
|
5
tsp
|
0.0246446
l
|
6
tsp
|
0.0295735
l
|
7
tsp
|
0.0345025
l
|
8
tsp
|
0.0394314
l
|
9
tsp
|
0.0443603
l
|
10
tsp
|
0.0492892
l
|
11
tsp
|
0.0542181
l
|
12
tsp
|
0.0591471
l
|
13
tsp
|
0.064076
l
|
14
tsp
|
0.0690049
l
|
15
tsp
|
0.0739338
l
|
16
tsp
|
0.0788627
l
|
17
tsp
|
0.0837917
l
|
18
tsp
|
0.0887206
l
|
19
tsp
|
0.0936495
l
|
20
tsp
|
0.0985784
l
|
21
tsp
|
0.103507
l
|
22
tsp
|
0.108436
l
|
23
tsp
|
0.113365
l
|
24
tsp
|
0.118294
l
|
25
tsp
|
0.123223
l
|
26
tsp
|
0.128152
l
|
27
tsp
|
0.133081
l
|
28
tsp
|
0.13801
l
|
29
tsp
|
0.142939
l
|
30
tsp
|
0.147868
l
|
31
tsp
|
0.152797
l
|
32
tsp
|
0.157725
l
|
33
tsp
|
0.162654
l
|
34
tsp
|
0.167583
l
|
35
tsp
|
0.172512
l
|
36
tsp
|
0.177441
l
|
37
tsp
|
0.18237
l
|
38
tsp
|
0.187299
l
|
39
tsp
|
0.192228
l
|
40
tsp
|
0.197157
l
|
41
tsp
|
0.202086
l
|
42
tsp
|
0.207015
l
|
43
tsp
|
0.211944
l
|
44
tsp
|
0.216873
l
|
45
tsp
|
0.221801
l
|
46
tsp
|
0.22673
l
|
47
tsp
|
0.231659
l
|
48
tsp
|
0.236588
l
|
49
tsp
|
0.241517
l
|
50
tsp
|
0.246446
l
|
51
tsp
|
0.251375
l
|
52
tsp
|
0.256304
l
|
53
tsp
|
0.261233
l
|
54
tsp
|
0.266162
l
|
55
tsp
|
0.271091
l
|
56
tsp
|
0.27602
l
|
57
tsp
|
0.280949
l
|
58
tsp
|
0.285877
l
|
59
tsp
|
0.290806
l
|
60
tsp
|
0.295735
l
|
61
tsp
|
0.300664
l
|
62
tsp
|
0.305593
l
|
63
tsp
|
0.310522
l
|
64
tsp
|
0.315451
l
|
65
tsp
|
0.32038
l
|
66
tsp
|
0.325309
l
|
67
tsp
|
0.330238
l
|
68
tsp
|
0.335167
l
|
69
tsp
|
0.340096
l
|
70
tsp
|
0.345025
l
|
71
tsp
|
0.349953
l
|
72
tsp
|
0.354882
l
|
73
tsp
|
0.359811
l
|
74
tsp
|
0.36474
l
|
75
tsp
|
0.369669
l
|
76
tsp
|
0.374598
l
|
77
tsp
|
0.379527
l
|
78
tsp
|
0.384456
l
|
79
tsp
|
0.389385
l
|
80
tsp
|
0.394314
l
|
81
tsp
|
0.399243
l
|
82
tsp
|
0.404172
l
|
83
tsp
|
0.4091
l
|
84
tsp
|
0.414029
l
|
85
tsp
|
0.418958
l
|
86
tsp
|
0.423887
l
|
87
tsp
|
0.428816
l
|
88
tsp
|
0.433745
l
|
89
tsp
|
0.438674
l
|
90
tsp
|
0.443603
l
|
91
tsp
|
0.448532
l
|
92
tsp
|
0.453461
l
|
93
tsp
|
0.45839
l
|
94
tsp
|
0.463319
l
|
95
tsp
|
0.468248
l
|
96
tsp
|
0.473176
l
|
97
tsp
|
0.478105
l
|
98
tsp
|
0.483034
l
|
99
tsp
|
0.487963
l
|
100
tsp
|
0.492892
l
|
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