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 cubic meter per day is an intriguing unit of flow rate often used in water management, engineering, and environmental sciences. This unit describes the volume of fluid that passes through a specified point in a system every day. To put it into perspective, one cubic meter of water is equivalent to 1,000 liters or roughly 264 gallons. Therefore, a flow rate of one cubic meter per day translates to about 41 cups of water per hour!
In large-scale applications, such as municipal water supply systems, this unit helps quantify the vast amounts of water required to sustain urban populations. For example, a medium-sized city might require tens of thousands of cubic meters per day to meet its residents’ needs. Understanding and managing these flow rates is crucial for ensuring efficient resource distribution and conservation.
Cubic feet per second | Cubic meters per day |
---|---|
0
ft³/s
|
0
m³/d
|
1
ft³/s
|
2446.57428
m³/d
|
2
ft³/s
|
4893.14857
m³/d
|
3
ft³/s
|
7339.72285
m³/d
|
4
ft³/s
|
9786.29714
m³/d
|
5
ft³/s
|
12232.87142
m³/d
|
6
ft³/s
|
14679.44571
m³/d
|
7
ft³/s
|
17126.02
m³/d
|
8
ft³/s
|
19572.59428
m³/d
|
9
ft³/s
|
22019.16856
m³/d
|
10
ft³/s
|
24465.74285
m³/d
|
11
ft³/s
|
26912.31713
m³/d
|
12
ft³/s
|
29358.89142
m³/d
|
13
ft³/s
|
31805.4657
m³/d
|
14
ft³/s
|
34252.03999
m³/d
|
15
ft³/s
|
36698.61427
m³/d
|
16
ft³/s
|
39145.18856
m³/d
|
17
ft³/s
|
41591.76284
m³/d
|
18
ft³/s
|
44038.33712
m³/d
|
19
ft³/s
|
46484.91141
m³/d
|
20
ft³/s
|
48931.48569
m³/d
|
21
ft³/s
|
51378.05998
m³/d
|
22
ft³/s
|
53824.63426
m³/d
|
23
ft³/s
|
56271.20855
m³/d
|
24
ft³/s
|
58717.78283
m³/d
|
25
ft³/s
|
61164.35712
m³/d
|
26
ft³/s
|
63610.9314
m³/d
|
27
ft³/s
|
66057.50569
m³/d
|
28
ft³/s
|
68504.07997
m³/d
|
29
ft³/s
|
70950.65426
m³/d
|
30
ft³/s
|
73397.22854
m³/d
|
31
ft³/s
|
75843.80283
m³/d
|
32
ft³/s
|
78290.37711
m³/d
|
33
ft³/s
|
80736.9514
m³/d
|
34
ft³/s
|
83183.52568
m³/d
|
35
ft³/s
|
85630.1
m³/d
|
36
ft³/s
|
88076.67425
m³/d
|
37
ft³/s
|
90523.24853
m³/d
|
38
ft³/s
|
92969.82282
m³/d
|
39
ft³/s
|
95416.3971
m³/d
|
40
ft³/s
|
97862.97139
m³/d
|
41
ft³/s
|
100309.54567
m³/d
|
42
ft³/s
|
102756.11996
m³/d
|
43
ft³/s
|
105202.69424
m³/d
|
44
ft³/s
|
107649.26853
m³/d
|
45
ft³/s
|
110095.84281
m³/d
|
46
ft³/s
|
112542.4171
m³/d
|
47
ft³/s
|
114988.99138
m³/d
|
48
ft³/s
|
117435.56567
m³/d
|
49
ft³/s
|
119882.13995
m³/d
|
50
ft³/s
|
122328.71423
m³/d
|
51
ft³/s
|
124775.28852
m³/d
|
52
ft³/s
|
127221.8628
m³/d
|
53
ft³/s
|
129668.43709
m³/d
|
54
ft³/s
|
132115.01137
m³/d
|
55
ft³/s
|
134561.58566
m³/d
|
56
ft³/s
|
137008.15994
m³/d
|
57
ft³/s
|
139454.73423
m³/d
|
58
ft³/s
|
141901.30851
m³/d
|
59
ft³/s
|
144347.8828
m³/d
|
60
ft³/s
|
146794.45708
m³/d
|
61
ft³/s
|
149241.03137
m³/d
|
62
ft³/s
|
151687.60565
m³/d
|
63
ft³/s
|
154134.17994
m³/d
|
64
ft³/s
|
156580.75422
m³/d
|
65
ft³/s
|
159027.32851
m³/d
|
66
ft³/s
|
161473.90279
m³/d
|
67
ft³/s
|
163920.47707
m³/d
|
68
ft³/s
|
166367.05136
m³/d
|
69
ft³/s
|
168813.62564
m³/d
|
70
ft³/s
|
171260.2
m³/d
|
71
ft³/s
|
173706.77421
m³/d
|
72
ft³/s
|
176153.3485
m³/d
|
73
ft³/s
|
178599.92278
m³/d
|
74
ft³/s
|
181046.49707
m³/d
|
75
ft³/s
|
183493.07135
m³/d
|
76
ft³/s
|
185939.64564
m³/d
|
77
ft³/s
|
188386.21992
m³/d
|
78
ft³/s
|
190832.79421
m³/d
|
79
ft³/s
|
193279.36849
m³/d
|
80
ft³/s
|
195725.94278
m³/d
|
81
ft³/s
|
198172.51706
m³/d
|
82
ft³/s
|
200619.09135
m³/d
|
83
ft³/s
|
203065.66563
m³/d
|
84
ft³/s
|
205512.23991
m³/d
|
85
ft³/s
|
207958.8142
m³/d
|
86
ft³/s
|
210405.38848
m³/d
|
87
ft³/s
|
212851.96277
m³/d
|
88
ft³/s
|
215298.53705
m³/d
|
89
ft³/s
|
217745.11134
m³/d
|
90
ft³/s
|
220191.68562
m³/d
|
91
ft³/s
|
222638.25991
m³/d
|
92
ft³/s
|
225084.83419
m³/d
|
93
ft³/s
|
227531.40848
m³/d
|
94
ft³/s
|
229977.98276
m³/d
|
95
ft³/s
|
232424.55705
m³/d
|
96
ft³/s
|
234871.13133
m³/d
|
97
ft³/s
|
237317.70562
m³/d
|
98
ft³/s
|
239764.2799
m³/d
|
99
ft³/s
|
242210.85419
m³/d
|
100
ft³/s
|
244657.42847
m³/d
|
If you like the website, share it on social media.