The “Litre per second” (L/s) is a crucial unit in fluid dynamics, representing the flow rate of liquids. It is widely used in engineering, hydrology, and environmental science to measure water consumption, irrigation, and sewage treatment. For instance, high-performance showerheads can have flow rates approaching 0.1 to 0.2 L/s, translating to a refreshing and efficient bath.
In larger applications, such as hydroelectric plants, turbines can handle thousands of litres per second to generate energy, showcasing how scale affects its utility. The versatility of the L/s unit enables precise calculations and planning, crucial for managing water resources in a world where sustainability is paramount. Understanding flow rates can optimize resource use, conserving water and energy in both household and industrial environments.
The quart per second is a unit typically used to measure flow rate, and it might seem a little unusual in everyday conversations. To put it in perspective, one quart per second is equivalent to the flow of nearly a gallon of liquid in just four seconds, showcasing its impressive speed for handling liquids. This unit is particularly useful in industrial settings, where understanding and controlling the rate of flow for substances like oil, water, or chemicals is crucial for efficiency and safety.
Interestingly, the quart has its roots in ancient measuring systems and is based on the Latin word “quartus,” meaning “fourth.” This highlights its historical significance, as early civilizations often used fractions of larger units to precisely measure goods. Whether you’re filling a swimming pool or calibrating a scientific experiment, a high flow rate such as quarts per second can indicate a significant and high-speed transfer of liquid.
| Litres per second | Quarts per second |
|---|---|
0
l/s
|
0
qt/s
|
1
l/s
|
1.05669
qt/s
|
2
l/s
|
2.11338
qt/s
|
3
l/s
|
3.17006
qt/s
|
4
l/s
|
4.22675
qt/s
|
5
l/s
|
5.28344
qt/s
|
6
l/s
|
6.34013
qt/s
|
7
l/s
|
7.39682
qt/s
|
8
l/s
|
8.45351
qt/s
|
9
l/s
|
9.51019
qt/s
|
10
l/s
|
10.56688
qt/s
|
11
l/s
|
11.62357
qt/s
|
12
l/s
|
12.68026
qt/s
|
13
l/s
|
13.73695
qt/s
|
14
l/s
|
14.79363
qt/s
|
15
l/s
|
15.85032
qt/s
|
16
l/s
|
16.90701
qt/s
|
17
l/s
|
17.9637
qt/s
|
18
l/s
|
19.02039
qt/s
|
19
l/s
|
20.07708
qt/s
|
20
l/s
|
21.13376
qt/s
|
21
l/s
|
22.19045
qt/s
|
22
l/s
|
23.24714
qt/s
|
23
l/s
|
24.30383
qt/s
|
24
l/s
|
25.36052
qt/s
|
25
l/s
|
26.41721
qt/s
|
26
l/s
|
27.47389
qt/s
|
27
l/s
|
28.53058
qt/s
|
28
l/s
|
29.58727
qt/s
|
29
l/s
|
30.64396
qt/s
|
30
l/s
|
31.70065
qt/s
|
31
l/s
|
32.75733
qt/s
|
32
l/s
|
33.81402
qt/s
|
33
l/s
|
34.87071
qt/s
|
34
l/s
|
35.9274
qt/s
|
35
l/s
|
36.98409
qt/s
|
36
l/s
|
38.04078
qt/s
|
37
l/s
|
39.09746
qt/s
|
38
l/s
|
40.15415
qt/s
|
39
l/s
|
41.21084
qt/s
|
40
l/s
|
42.26753
qt/s
|
41
l/s
|
43.32422
qt/s
|
42
l/s
|
44.3809
qt/s
|
43
l/s
|
45.43759
qt/s
|
44
l/s
|
46.49428
qt/s
|
45
l/s
|
47.55097
qt/s
|
46
l/s
|
48.60766
qt/s
|
47
l/s
|
49.66435
qt/s
|
48
l/s
|
50.72103
qt/s
|
49
l/s
|
51.77772
qt/s
|
50
l/s
|
52.83441
qt/s
|
51
l/s
|
53.8911
qt/s
|
52
l/s
|
54.94779
qt/s
|
53
l/s
|
56.00448
qt/s
|
54
l/s
|
57.06116
qt/s
|
55
l/s
|
58.11785
qt/s
|
56
l/s
|
59.17454
qt/s
|
57
l/s
|
60.23123
qt/s
|
58
l/s
|
61.28792
qt/s
|
59
l/s
|
62.3446
qt/s
|
60
l/s
|
63.40129
qt/s
|
61
l/s
|
64.45798
qt/s
|
62
l/s
|
65.51467
qt/s
|
63
l/s
|
66.57136
qt/s
|
64
l/s
|
67.62805
qt/s
|
65
l/s
|
68.68473
qt/s
|
66
l/s
|
69.74142
qt/s
|
67
l/s
|
70.79811
qt/s
|
68
l/s
|
71.8548
qt/s
|
69
l/s
|
72.91149
qt/s
|
70
l/s
|
73.96817
qt/s
|
71
l/s
|
75.02486
qt/s
|
72
l/s
|
76.08155
qt/s
|
73
l/s
|
77.13824
qt/s
|
74
l/s
|
78.19493
qt/s
|
75
l/s
|
79.25162
qt/s
|
76
l/s
|
80.3083
qt/s
|
77
l/s
|
81.36499
qt/s
|
78
l/s
|
82.42168
qt/s
|
79
l/s
|
83.47837
qt/s
|
80
l/s
|
84.53506
qt/s
|
81
l/s
|
85.59174
qt/s
|
82
l/s
|
86.64843
qt/s
|
83
l/s
|
87.70512
qt/s
|
84
l/s
|
88.76181
qt/s
|
85
l/s
|
89.8185
qt/s
|
86
l/s
|
90.87519
qt/s
|
87
l/s
|
91.93187
qt/s
|
88
l/s
|
92.98856
qt/s
|
89
l/s
|
94.04525
qt/s
|
90
l/s
|
95.10194
qt/s
|
91
l/s
|
96.15863
qt/s
|
92
l/s
|
97.21532
qt/s
|
93
l/s
|
98.272
qt/s
|
94
l/s
|
99.32869
qt/s
|
95
l/s
|
100.38538
qt/s
|
96
l/s
|
101.44207
qt/s
|
97
l/s
|
102.49876
qt/s
|
98
l/s
|
103.55544
qt/s
|
99
l/s
|
104.61213
qt/s
|
100
l/s
|
105.66882
qt/s
|
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