A cubic foot per second (cfs) is a unit of flow rate that describes the volume of water or other fluids moving past a point every second. It is commonly used in hydrology to measure rivers and streams, providing insight into water availability and flood prediction. To put it in perspective, one cubic foot per second is equivalent to 7.48 gallons per second. Thus, a modest stream might flow at several tens of cfs, while larger rivers, such as the Mississippi, can exceed 500,000 cfs!
Interestingly, this unit has historical significance dating back to the early days of water management, where it played a crucial role in the development of infrastructure for agriculture and urban planning, influencing patterns of settlement and economic development around the world.
Litre per minute (L/min) is a versatile unit commonly used to measure fluid flow rate, especially in medical, engineering, and ecological contexts. For instance, in healthcare, oxygen delivery is typically measured in litres per minute, with high-flow systems delivering up to 15 L/min to aid patients with respiratory issues. In the world of engineering, especially when dealing with pumps and water devices, understanding flow rates in L/min is critical to ensuring efficient system performance and resource management.
Interestingly, measuring river flow in smaller streams also uses this unit. Understanding flow rates here is vital for environmental studies, revealing river health and predicting events like floods. Such diverse applications of litres per minute illustrate its essential role in both safeguarding human health and monitoring environmental ecosystems.
Cubic feet per second | Litres per minute |
---|---|
0
ft³/s
|
0
l/min
|
1
ft³/s
|
1699.00992
l/min
|
2
ft³/s
|
3398.01984
l/min
|
3
ft³/s
|
5097.02976
l/min
|
4
ft³/s
|
6796.03968
l/min
|
5
ft³/s
|
8495.0496
l/min
|
6
ft³/s
|
10194.05952
l/min
|
7
ft³/s
|
11893.06944
l/min
|
8
ft³/s
|
13592.07936
l/min
|
9
ft³/s
|
15291.08928
l/min
|
10
ft³/s
|
16990.0992
l/min
|
11
ft³/s
|
18689.10912
l/min
|
12
ft³/s
|
20388.11904
l/min
|
13
ft³/s
|
22087.12896
l/min
|
14
ft³/s
|
23786.13888
l/min
|
15
ft³/s
|
25485.1488
l/min
|
16
ft³/s
|
27184.15872
l/min
|
17
ft³/s
|
28883.16864
l/min
|
18
ft³/s
|
30582.17856
l/min
|
19
ft³/s
|
32281.18848
l/min
|
20
ft³/s
|
33980.1984
l/min
|
21
ft³/s
|
35679.20832
l/min
|
22
ft³/s
|
37378.21824
l/min
|
23
ft³/s
|
39077.22816
l/min
|
24
ft³/s
|
40776.23808
l/min
|
25
ft³/s
|
42475.248
l/min
|
26
ft³/s
|
44174.25792
l/min
|
27
ft³/s
|
45873.26784
l/min
|
28
ft³/s
|
47572.27776
l/min
|
29
ft³/s
|
49271.28768
l/min
|
30
ft³/s
|
50970.2976
l/min
|
31
ft³/s
|
52669.30752
l/min
|
32
ft³/s
|
54368.31744
l/min
|
33
ft³/s
|
56067.32736
l/min
|
34
ft³/s
|
57766.33728
l/min
|
35
ft³/s
|
59465.3472
l/min
|
36
ft³/s
|
61164.35712
l/min
|
37
ft³/s
|
62863.36704
l/min
|
38
ft³/s
|
64562.37696
l/min
|
39
ft³/s
|
66261.38688
l/min
|
40
ft³/s
|
67960.3968
l/min
|
41
ft³/s
|
69659.40672
l/min
|
42
ft³/s
|
71358.41664
l/min
|
43
ft³/s
|
73057.42656
l/min
|
44
ft³/s
|
74756.43648
l/min
|
45
ft³/s
|
76455.4464
l/min
|
46
ft³/s
|
78154.45632
l/min
|
47
ft³/s
|
79853.46624
l/min
|
48
ft³/s
|
81552.47616
l/min
|
49
ft³/s
|
83251.48608
l/min
|
50
ft³/s
|
84950.496
l/min
|
51
ft³/s
|
86649.50592
l/min
|
52
ft³/s
|
88348.51584
l/min
|
53
ft³/s
|
90047.52576
l/min
|
54
ft³/s
|
91746.53568
l/min
|
55
ft³/s
|
93445.5456
l/min
|
56
ft³/s
|
95144.55552
l/min
|
57
ft³/s
|
96843.56544
l/min
|
58
ft³/s
|
98542.57536
l/min
|
59
ft³/s
|
100241.58528
l/min
|
60
ft³/s
|
101940.5952
l/min
|
61
ft³/s
|
103639.60512
l/min
|
62
ft³/s
|
105338.61504
l/min
|
63
ft³/s
|
107037.62496
l/min
|
64
ft³/s
|
108736.63488
l/min
|
65
ft³/s
|
110435.6448
l/min
|
66
ft³/s
|
112134.65472
l/min
|
67
ft³/s
|
113833.66464
l/min
|
68
ft³/s
|
115532.67456
l/min
|
69
ft³/s
|
117231.68448
l/min
|
70
ft³/s
|
118930.6944
l/min
|
71
ft³/s
|
120629.70431
l/min
|
72
ft³/s
|
122328.71423
l/min
|
73
ft³/s
|
124027.72415
l/min
|
74
ft³/s
|
125726.73407
l/min
|
75
ft³/s
|
127425.74399
l/min
|
76
ft³/s
|
129124.75391
l/min
|
77
ft³/s
|
130823.76383
l/min
|
78
ft³/s
|
132522.77375
l/min
|
79
ft³/s
|
134221.78367
l/min
|
80
ft³/s
|
135920.79359
l/min
|
81
ft³/s
|
137619.80351
l/min
|
82
ft³/s
|
139318.81343
l/min
|
83
ft³/s
|
141017.82335
l/min
|
84
ft³/s
|
142716.83327
l/min
|
85
ft³/s
|
144415.84319
l/min
|
86
ft³/s
|
146114.85311
l/min
|
87
ft³/s
|
147813.86303
l/min
|
88
ft³/s
|
149512.87295
l/min
|
89
ft³/s
|
151211.88287
l/min
|
90
ft³/s
|
152910.89279
l/min
|
91
ft³/s
|
154609.90271
l/min
|
92
ft³/s
|
156308.91263
l/min
|
93
ft³/s
|
158007.92255
l/min
|
94
ft³/s
|
159706.93247
l/min
|
95
ft³/s
|
161405.94239
l/min
|
96
ft³/s
|
163104.95231
l/min
|
97
ft³/s
|
164803.96223
l/min
|
98
ft³/s
|
166502.97215
l/min
|
99
ft³/s
|
168201.98207
l/min
|
100
ft³/s
|
169900.99199
l/min
|
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