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 gallon per hour (GPH) might seem like a straightforward unit for measuring flow rate, but it plays a crucial role in numerous applications, from optimizing fuel efficiency in vehicles to calculating water usage for irrigation systems. Interestingly, the concept of measuring flow rates dates back to ancient Rome, where aqueducts were designed with flow capacities to regulate water supply throughout the city.
What’s more, today’s technology leverages GPH to monitor and reduce energy consumption in heating systems by determining precise fuel flow, contributing significantly to energy conservation efforts. This unit is pivotal in industries where precision and efficiency dictate success, underscoring its importance as a practical measure across various sectors. Whether in engineering or environmental management, GPH helps us navigate and optimize our resource usage.
Cubic feet per second | Gallons per hour |
---|---|
0
ft³/s
|
0
gal/h
|
1
ft³/s
|
26929.85625
gal/h
|
2
ft³/s
|
53859.7125
gal/h
|
3
ft³/s
|
80789.56875
gal/h
|
4
ft³/s
|
107719.425
gal/h
|
5
ft³/s
|
134649.28125
gal/h
|
6
ft³/s
|
161579.1375
gal/h
|
7
ft³/s
|
188508.99375
gal/h
|
8
ft³/s
|
215438.85
gal/h
|
9
ft³/s
|
242368.70625
gal/h
|
10
ft³/s
|
269298.5625
gal/h
|
11
ft³/s
|
296228.41875
gal/h
|
12
ft³/s
|
323158.275
gal/h
|
13
ft³/s
|
350088.13125
gal/h
|
14
ft³/s
|
377017.9875
gal/h
|
15
ft³/s
|
403947.84375
gal/h
|
16
ft³/s
|
430877.7
gal/h
|
17
ft³/s
|
457807.55625
gal/h
|
18
ft³/s
|
484737.4125
gal/h
|
19
ft³/s
|
511667.26875
gal/h
|
20
ft³/s
|
538597.125
gal/h
|
21
ft³/s
|
565526.98125
gal/h
|
22
ft³/s
|
592456.8375
gal/h
|
23
ft³/s
|
619386.69375
gal/h
|
24
ft³/s
|
646316.55
gal/h
|
25
ft³/s
|
673246.40625
gal/h
|
26
ft³/s
|
700176.2625
gal/h
|
27
ft³/s
|
727106.11875
gal/h
|
28
ft³/s
|
754035.975
gal/h
|
29
ft³/s
|
780965.83125
gal/h
|
30
ft³/s
|
807895.6875
gal/h
|
31
ft³/s
|
834825.54375
gal/h
|
32
ft³/s
|
861755.4
gal/h
|
33
ft³/s
|
888685.25625
gal/h
|
34
ft³/s
|
915615.1125
gal/h
|
35
ft³/s
|
942544.96875
gal/h
|
36
ft³/s
|
969474.825
gal/h
|
37
ft³/s
|
996404.68125
gal/h
|
38
ft³/s
|
1023334.5375
gal/h
|
39
ft³/s
|
1050264.39375
gal/h
|
40
ft³/s
|
1077194.25
gal/h
|
41
ft³/s
|
1104124.10625
gal/h
|
42
ft³/s
|
1131053.9625
gal/h
|
43
ft³/s
|
1157983.81875
gal/h
|
44
ft³/s
|
1184913.675
gal/h
|
45
ft³/s
|
1211843.53125
gal/h
|
46
ft³/s
|
1238773.3875
gal/h
|
47
ft³/s
|
1265703.24375
gal/h
|
48
ft³/s
|
1292633.1
gal/h
|
49
ft³/s
|
1319562.95625
gal/h
|
50
ft³/s
|
1346492.8125
gal/h
|
51
ft³/s
|
1373422.66875
gal/h
|
52
ft³/s
|
1400352.525
gal/h
|
53
ft³/s
|
1427282.38125
gal/h
|
54
ft³/s
|
1454212.2375
gal/h
|
55
ft³/s
|
1481142.09375
gal/h
|
56
ft³/s
|
1508071.95
gal/h
|
57
ft³/s
|
1535001.80625
gal/h
|
58
ft³/s
|
1561931.6625
gal/h
|
59
ft³/s
|
1588861.51875
gal/h
|
60
ft³/s
|
1615791.375
gal/h
|
61
ft³/s
|
1642721.23125
gal/h
|
62
ft³/s
|
1669651.0875
gal/h
|
63
ft³/s
|
1696580.94375
gal/h
|
64
ft³/s
|
1723510.8
gal/h
|
65
ft³/s
|
1750440.65625
gal/h
|
66
ft³/s
|
1777370.5125
gal/h
|
67
ft³/s
|
1804300.36875
gal/h
|
68
ft³/s
|
1831230.225
gal/h
|
69
ft³/s
|
1858160.08125
gal/h
|
70
ft³/s
|
1885089.9375
gal/h
|
71
ft³/s
|
1912019.79375
gal/h
|
72
ft³/s
|
1938949.65
gal/h
|
73
ft³/s
|
1965879.50625
gal/h
|
74
ft³/s
|
1992809.3625
gal/h
|
75
ft³/s
|
2019739.21875
gal/h
|
76
ft³/s
|
2046669.075
gal/h
|
77
ft³/s
|
2073598.93125
gal/h
|
78
ft³/s
|
2100528.7875
gal/h
|
79
ft³/s
|
2127458.64375
gal/h
|
80
ft³/s
|
2154388.5
gal/h
|
81
ft³/s
|
2181318.35625
gal/h
|
82
ft³/s
|
2208248.2125
gal/h
|
83
ft³/s
|
2235178.06875
gal/h
|
84
ft³/s
|
2262107.925
gal/h
|
85
ft³/s
|
2289037.78125
gal/h
|
86
ft³/s
|
2315967.6375
gal/h
|
87
ft³/s
|
2342897.49375
gal/h
|
88
ft³/s
|
2369827.35
gal/h
|
89
ft³/s
|
2396757.20625
gal/h
|
90
ft³/s
|
2423687.0625
gal/h
|
91
ft³/s
|
2450616.91875
gal/h
|
92
ft³/s
|
2477546.775
gal/h
|
93
ft³/s
|
2504476.63125
gal/h
|
94
ft³/s
|
2531406.4875
gal/h
|
95
ft³/s
|
2558336.34375
gal/h
|
96
ft³/s
|
2585266.2
gal/h
|
97
ft³/s
|
2612196.05625
gal/h
|
98
ft³/s
|
2639125.9125
gal/h
|
99
ft³/s
|
2666055.76875
gal/h
|
100
ft³/s
|
2692985.625
gal/h
|
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