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.
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.
| Pints per second | Cubic feet per second |
|---|---|
0
pnt/s
|
0
ft³/s
|
0.5
pnt/s
|
0.00835504
ft³/s
|
1
pnt/s
|
0.0167101
ft³/s
|
1.5
pnt/s
|
0.0250651
ft³/s
|
2
pnt/s
|
0.0334202
ft³/s
|
2.5
pnt/s
|
0.0417752
ft³/s
|
3
pnt/s
|
0.0501302
ft³/s
|
3.5
pnt/s
|
0.0584853
ft³/s
|
4
pnt/s
|
0.0668403
ft³/s
|
4.5
pnt/s
|
0.0751954
ft³/s
|
5
pnt/s
|
0.0835504
ft³/s
|
5.5
pnt/s
|
0.0919054
ft³/s
|
6
pnt/s
|
0.10026
ft³/s
|
6.5
pnt/s
|
0.108616
ft³/s
|
7
pnt/s
|
0.116971
ft³/s
|
7.5
pnt/s
|
0.125326
ft³/s
|
8
pnt/s
|
0.133681
ft³/s
|
8.5
pnt/s
|
0.142036
ft³/s
|
9
pnt/s
|
0.150391
ft³/s
|
9.5
pnt/s
|
0.158746
ft³/s
|
10
pnt/s
|
0.167101
ft³/s
|
10.5
pnt/s
|
0.175456
ft³/s
|
11
pnt/s
|
0.183811
ft³/s
|
11.5
pnt/s
|
0.192166
ft³/s
|
12
pnt/s
|
0.200521
ft³/s
|
12.5
pnt/s
|
0.208876
ft³/s
|
13
pnt/s
|
0.217231
ft³/s
|
13.5
pnt/s
|
0.225586
ft³/s
|
14
pnt/s
|
0.233941
ft³/s
|
14.5
pnt/s
|
0.242296
ft³/s
|
15
pnt/s
|
0.250651
ft³/s
|
15.5
pnt/s
|
0.259006
ft³/s
|
16
pnt/s
|
0.267361
ft³/s
|
16.5
pnt/s
|
0.275716
ft³/s
|
17
pnt/s
|
0.284071
ft³/s
|
17.5
pnt/s
|
0.292426
ft³/s
|
18
pnt/s
|
0.300781
ft³/s
|
18.5
pnt/s
|
0.309136
ft³/s
|
19
pnt/s
|
0.317491
ft³/s
|
19.5
pnt/s
|
0.325847
ft³/s
|
20
pnt/s
|
0.334202
ft³/s
|
20.5
pnt/s
|
0.342557
ft³/s
|
21
pnt/s
|
0.350912
ft³/s
|
21.5
pnt/s
|
0.359267
ft³/s
|
22
pnt/s
|
0.367622
ft³/s
|
22.5
pnt/s
|
0.375977
ft³/s
|
23
pnt/s
|
0.384332
ft³/s
|
23.5
pnt/s
|
0.392687
ft³/s
|
24
pnt/s
|
0.401042
ft³/s
|
24.5
pnt/s
|
0.409397
ft³/s
|
25
pnt/s
|
0.417752
ft³/s
|
25.5
pnt/s
|
0.426107
ft³/s
|
26
pnt/s
|
0.434462
ft³/s
|
26.5
pnt/s
|
0.442817
ft³/s
|
27
pnt/s
|
0.451172
ft³/s
|
27.5
pnt/s
|
0.459527
ft³/s
|
28
pnt/s
|
0.467882
ft³/s
|
28.5
pnt/s
|
0.476237
ft³/s
|
29
pnt/s
|
0.484592
ft³/s
|
29.5
pnt/s
|
0.492947
ft³/s
|
30
pnt/s
|
0.501302
ft³/s
|
30.5
pnt/s
|
0.509657
ft³/s
|
31
pnt/s
|
0.518012
ft³/s
|
31.5
pnt/s
|
0.526367
ft³/s
|
32
pnt/s
|
0.534722
ft³/s
|
32.5
pnt/s
|
0.543078
ft³/s
|
33
pnt/s
|
0.551433
ft³/s
|
33.5
pnt/s
|
0.559788
ft³/s
|
34
pnt/s
|
0.568143
ft³/s
|
34.5
pnt/s
|
0.576498
ft³/s
|
35
pnt/s
|
0.584853
ft³/s
|
35.5
pnt/s
|
0.593208
ft³/s
|
36
pnt/s
|
0.601563
ft³/s
|
36.5
pnt/s
|
0.609918
ft³/s
|
37
pnt/s
|
0.618273
ft³/s
|
37.5
pnt/s
|
0.626628
ft³/s
|
38
pnt/s
|
0.634983
ft³/s
|
38.5
pnt/s
|
0.643338
ft³/s
|
39
pnt/s
|
0.651693
ft³/s
|
39.5
pnt/s
|
0.660048
ft³/s
|
40
pnt/s
|
0.668403
ft³/s
|
40.5
pnt/s
|
0.676758
ft³/s
|
41
pnt/s
|
0.685113
ft³/s
|
41.5
pnt/s
|
0.693468
ft³/s
|
42
pnt/s
|
0.701823
ft³/s
|
42.5
pnt/s
|
0.710178
ft³/s
|
43
pnt/s
|
0.718533
ft³/s
|
43.5
pnt/s
|
0.726888
ft³/s
|
44
pnt/s
|
0.735243
ft³/s
|
44.5
pnt/s
|
0.743598
ft³/s
|
45
pnt/s
|
0.751954
ft³/s
|
45.5
pnt/s
|
0.760309
ft³/s
|
46
pnt/s
|
0.768664
ft³/s
|
46.5
pnt/s
|
0.777019
ft³/s
|
47
pnt/s
|
0.785374
ft³/s
|
47.5
pnt/s
|
0.793729
ft³/s
|
48
pnt/s
|
0.802084
ft³/s
|
48.5
pnt/s
|
0.810439
ft³/s
|
49
pnt/s
|
0.818794
ft³/s
|
49.5
pnt/s
|
0.827149
ft³/s
|
50
pnt/s
|
0.835504
ft³/s
|
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