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.
The pint per second unit may not seem familiar to some, but it’s a fascinating measure of flow rate, primarily used to quantify liquid flow in a system. Originating from the British Imperial system, a pint per second represents the volume of one pint flowing through a conduit every second. While we often think about flow rates in terms of liters per second or gallons per hour, pint per second can be a useful measure for smaller-scale applications, especially in culinary or laboratory settings.
Interestingly, the concept of flow rate is crucial in various industries, from chemical processing to beverage dispensing. Consider beer taps at a busy pub; they might be designed to achieve an optimal flow rate, ensuring a pint of beer is expertly poured in a matter of seconds, balancing speed and quality to create the perfect pour.
Cubic feet per second | Pints per second |
---|---|
0
ft³/s
|
0
pnt/s
|
1
ft³/s
|
59.84413
pnt/s
|
2
ft³/s
|
119.68825
pnt/s
|
3
ft³/s
|
179.53238
pnt/s
|
4
ft³/s
|
239.3765
pnt/s
|
5
ft³/s
|
299.22063
pnt/s
|
6
ft³/s
|
359.06475
pnt/s
|
7
ft³/s
|
418.90888
pnt/s
|
8
ft³/s
|
478.753
pnt/s
|
9
ft³/s
|
538.59713
pnt/s
|
10
ft³/s
|
598.44125
pnt/s
|
11
ft³/s
|
658.28538
pnt/s
|
12
ft³/s
|
718.1295
pnt/s
|
13
ft³/s
|
777.97363
pnt/s
|
14
ft³/s
|
837.81775
pnt/s
|
15
ft³/s
|
897.66188
pnt/s
|
16
ft³/s
|
957.506
pnt/s
|
17
ft³/s
|
1017.35013
pnt/s
|
18
ft³/s
|
1077.19425
pnt/s
|
19
ft³/s
|
1137.03838
pnt/s
|
20
ft³/s
|
1196.8825
pnt/s
|
21
ft³/s
|
1256.72663
pnt/s
|
22
ft³/s
|
1316.57075
pnt/s
|
23
ft³/s
|
1376.41488
pnt/s
|
24
ft³/s
|
1436.259
pnt/s
|
25
ft³/s
|
1496.10313
pnt/s
|
26
ft³/s
|
1555.94725
pnt/s
|
27
ft³/s
|
1615.79138
pnt/s
|
28
ft³/s
|
1675.6355
pnt/s
|
29
ft³/s
|
1735.47963
pnt/s
|
30
ft³/s
|
1795.32375
pnt/s
|
31
ft³/s
|
1855.16788
pnt/s
|
32
ft³/s
|
1915.012
pnt/s
|
33
ft³/s
|
1974.85613
pnt/s
|
34
ft³/s
|
2034.70025
pnt/s
|
35
ft³/s
|
2094.54438
pnt/s
|
36
ft³/s
|
2154.3885
pnt/s
|
37
ft³/s
|
2214.23263
pnt/s
|
38
ft³/s
|
2274.07675
pnt/s
|
39
ft³/s
|
2333.92088
pnt/s
|
40
ft³/s
|
2393.765
pnt/s
|
41
ft³/s
|
2453.60913
pnt/s
|
42
ft³/s
|
2513.45325
pnt/s
|
43
ft³/s
|
2573.29738
pnt/s
|
44
ft³/s
|
2633.1415
pnt/s
|
45
ft³/s
|
2692.98563
pnt/s
|
46
ft³/s
|
2752.82975
pnt/s
|
47
ft³/s
|
2812.67388
pnt/s
|
48
ft³/s
|
2872.518
pnt/s
|
49
ft³/s
|
2932.36213
pnt/s
|
50
ft³/s
|
2992.20625
pnt/s
|
51
ft³/s
|
3052.05038
pnt/s
|
52
ft³/s
|
3111.8945
pnt/s
|
53
ft³/s
|
3171.73863
pnt/s
|
54
ft³/s
|
3231.58275
pnt/s
|
55
ft³/s
|
3291.42688
pnt/s
|
56
ft³/s
|
3351.271
pnt/s
|
57
ft³/s
|
3411.11513
pnt/s
|
58
ft³/s
|
3470.95925
pnt/s
|
59
ft³/s
|
3530.80338
pnt/s
|
60
ft³/s
|
3590.6475
pnt/s
|
61
ft³/s
|
3650.49163
pnt/s
|
62
ft³/s
|
3710.33575
pnt/s
|
63
ft³/s
|
3770.17988
pnt/s
|
64
ft³/s
|
3830.024
pnt/s
|
65
ft³/s
|
3889.86813
pnt/s
|
66
ft³/s
|
3949.71225
pnt/s
|
67
ft³/s
|
4009.55638
pnt/s
|
68
ft³/s
|
4069.4005
pnt/s
|
69
ft³/s
|
4129.24463
pnt/s
|
70
ft³/s
|
4189.08875
pnt/s
|
71
ft³/s
|
4248.93288
pnt/s
|
72
ft³/s
|
4308.777
pnt/s
|
73
ft³/s
|
4368.62113
pnt/s
|
74
ft³/s
|
4428.46525
pnt/s
|
75
ft³/s
|
4488.30938
pnt/s
|
76
ft³/s
|
4548.1535
pnt/s
|
77
ft³/s
|
4607.99763
pnt/s
|
78
ft³/s
|
4667.84175
pnt/s
|
79
ft³/s
|
4727.68588
pnt/s
|
80
ft³/s
|
4787.53
pnt/s
|
81
ft³/s
|
4847.37413
pnt/s
|
82
ft³/s
|
4907.21825
pnt/s
|
83
ft³/s
|
4967.06238
pnt/s
|
84
ft³/s
|
5026.9065
pnt/s
|
85
ft³/s
|
5086.75063
pnt/s
|
86
ft³/s
|
5146.59475
pnt/s
|
87
ft³/s
|
5206.43888
pnt/s
|
88
ft³/s
|
5266.283
pnt/s
|
89
ft³/s
|
5326.12713
pnt/s
|
90
ft³/s
|
5385.97125
pnt/s
|
91
ft³/s
|
5445.81538
pnt/s
|
92
ft³/s
|
5505.6595
pnt/s
|
93
ft³/s
|
5565.50363
pnt/s
|
94
ft³/s
|
5625.34775
pnt/s
|
95
ft³/s
|
5685.19188
pnt/s
|
96
ft³/s
|
5745.036
pnt/s
|
97
ft³/s
|
5804.88013
pnt/s
|
98
ft³/s
|
5864.72425
pnt/s
|
99
ft³/s
|
5924.56838
pnt/s
|
100
ft³/s
|
5984.4125
pnt/s
|
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