The cubic inch per minute (in³/min) may seem like a mundane unit, but it holds importance in various engineering and mechanical applications. This unit measures volumetric flow rate, essentially how much space a fluid occupies as it moves through a system over time. Notably, it’s often used in hydraulic systems to determine the flow of liquids like oil, which is crucial for ensuring machinery operates smoothly and efficiently.
Historically, the cubic inch was a fundamental unit in U.S. manufacturing, particularly in the automotive industry. Engines were once commonly described by their displacement in cubic inches, influencing a cultural appreciation for engine size. These volumetric measurements have paved the way for engineers to design more efficient fluid systems, influencing technologies from simple pump systems to complex aerospace engineering.
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.
Cubic inches per minute | Cubic feet per second |
---|---|
0
in³/min
|
0
ft³/s
|
100
in³/min
|
0.000964502
ft³/s
|
200
in³/min
|
0.001929
ft³/s
|
300
in³/min
|
0.00289351
ft³/s
|
400
in³/min
|
0.00385801
ft³/s
|
500
in³/min
|
0.00482251
ft³/s
|
600
in³/min
|
0.00578701
ft³/s
|
700
in³/min
|
0.00675152
ft³/s
|
800
in³/min
|
0.00771602
ft³/s
|
900
in³/min
|
0.00868052
ft³/s
|
1000
in³/min
|
0.00964502
ft³/s
|
1100
in³/min
|
0.0106095
ft³/s
|
1200
in³/min
|
0.011574
ft³/s
|
1300
in³/min
|
0.0125385
ft³/s
|
1400
in³/min
|
0.013503
ft³/s
|
1500
in³/min
|
0.0144675
ft³/s
|
1600
in³/min
|
0.015432
ft³/s
|
1700
in³/min
|
0.0163965
ft³/s
|
1800
in³/min
|
0.017361
ft³/s
|
1900
in³/min
|
0.0183255
ft³/s
|
2000
in³/min
|
0.01929
ft³/s
|
2100
in³/min
|
0.0202545
ft³/s
|
2200
in³/min
|
0.021219
ft³/s
|
2300
in³/min
|
0.0221836
ft³/s
|
2400
in³/min
|
0.0231481
ft³/s
|
2500
in³/min
|
0.0241126
ft³/s
|
2600
in³/min
|
0.0250771
ft³/s
|
2700
in³/min
|
0.0260416
ft³/s
|
2800
in³/min
|
0.0270061
ft³/s
|
2900
in³/min
|
0.0279706
ft³/s
|
3000
in³/min
|
0.0289351
ft³/s
|
3100
in³/min
|
0.0298996
ft³/s
|
3200
in³/min
|
0.0308641
ft³/s
|
3300
in³/min
|
0.0318286
ft³/s
|
3400
in³/min
|
0.0327931
ft³/s
|
3500
in³/min
|
0.0337576
ft³/s
|
3600
in³/min
|
0.0347221
ft³/s
|
3700
in³/min
|
0.0356866
ft³/s
|
3800
in³/min
|
0.0366511
ft³/s
|
3900
in³/min
|
0.0376156
ft³/s
|
4000
in³/min
|
0.0385801
ft³/s
|
4100
in³/min
|
0.0395446
ft³/s
|
4200
in³/min
|
0.0405091
ft³/s
|
4300
in³/min
|
0.0414736
ft³/s
|
4400
in³/min
|
0.0424381
ft³/s
|
4500
in³/min
|
0.0434026
ft³/s
|
4600
in³/min
|
0.0443671
ft³/s
|
4700
in³/min
|
0.0453316
ft³/s
|
4800
in³/min
|
0.0462961
ft³/s
|
4900
in³/min
|
0.0472606
ft³/s
|
5000
in³/min
|
0.0482251
ft³/s
|
5100
in³/min
|
0.0491896
ft³/s
|
5200
in³/min
|
0.0501541
ft³/s
|
5300
in³/min
|
0.0511186
ft³/s
|
5400
in³/min
|
0.0520831
ft³/s
|
5500
in³/min
|
0.0530476
ft³/s
|
5600
in³/min
|
0.0540121
ft³/s
|
5700
in³/min
|
0.0549766
ft³/s
|
5800
in³/min
|
0.0559411
ft³/s
|
5900
in³/min
|
0.0569056
ft³/s
|
6000
in³/min
|
0.0578701
ft³/s
|
6100
in³/min
|
0.0588346
ft³/s
|
6200
in³/min
|
0.0597991
ft³/s
|
6300
in³/min
|
0.0607636
ft³/s
|
6400
in³/min
|
0.0617281
ft³/s
|
6500
in³/min
|
0.0626926
ft³/s
|
6600
in³/min
|
0.0636571
ft³/s
|
6700
in³/min
|
0.0646216
ft³/s
|
6800
in³/min
|
0.0655862
ft³/s
|
6900
in³/min
|
0.0665507
ft³/s
|
7000
in³/min
|
0.0675152
ft³/s
|
7100
in³/min
|
0.0684797
ft³/s
|
7200
in³/min
|
0.0694442
ft³/s
|
7300
in³/min
|
0.0704087
ft³/s
|
7400
in³/min
|
0.0713732
ft³/s
|
7500
in³/min
|
0.0723377
ft³/s
|
7600
in³/min
|
0.0733022
ft³/s
|
7700
in³/min
|
0.0742667
ft³/s
|
7800
in³/min
|
0.0752312
ft³/s
|
7900
in³/min
|
0.0761957
ft³/s
|
8000
in³/min
|
0.0771602
ft³/s
|
8100
in³/min
|
0.0781247
ft³/s
|
8200
in³/min
|
0.0790892
ft³/s
|
8300
in³/min
|
0.0800537
ft³/s
|
8400
in³/min
|
0.0810182
ft³/s
|
8500
in³/min
|
0.0819827
ft³/s
|
8600
in³/min
|
0.0829472
ft³/s
|
8700
in³/min
|
0.0839117
ft³/s
|
8800
in³/min
|
0.0848762
ft³/s
|
8900
in³/min
|
0.0858407
ft³/s
|
9000
in³/min
|
0.0868052
ft³/s
|
9100
in³/min
|
0.0877697
ft³/s
|
9200
in³/min
|
0.0887342
ft³/s
|
9300
in³/min
|
0.0896987
ft³/s
|
9400
in³/min
|
0.0906632
ft³/s
|
9500
in³/min
|
0.0916277
ft³/s
|
9600
in³/min
|
0.0925922
ft³/s
|
9700
in³/min
|
0.0935567
ft³/s
|
9800
in³/min
|
0.0945212
ft³/s
|
9900
in³/min
|
0.0954857
ft³/s
|
10000
in³/min
|
0.0964502
ft³/s
|
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