Cubic foot per minute (CFM) is a unit that measures the flow rate of air and is widely used in various industries, from HVAC systems to automotive engineering. Understanding CFM is crucial for designing efficient ventilation systems, as it determines how much air is circulated within a specific space per minute. But did you know that the origins of measuring air flow date back to the early 20th century? Back then, engineers realized the need for standardized measurements to ensure optimal air quality and comfortable living conditions, which led to the popularization of CFM as a standard metric.
Remarkably, one cubic foot of air at room temperature weighs about 0.0807 pounds. With this knowledge, professionals can precisely calibrate systems to achieve desired airflow rates, maximize energy efficiency, and improve air quality. Whether managing the air systems in skyscrapers, homes, or cars, CFM remains a pivotal unit for ensuring environments stay fresh and healthy.
The cubic kilometer per second (km³/s) is an immense unit of volumetric flow rate, often used to describe the colossal discharges from natural phenomena like volcanic eruptions or catastrophic floods. To put it into perspective, consider that the entire flow of the Amazon River, the largest river by discharge volume in the world, averages about 0.21 km³/s. This staggering volume showcases the incredible power and scale inherent in natural water and magma systems.
Such massive flow rates are not commonly encountered in everyday scenarios, making this unit indispensable for geologists and hydrologists attempting to quantify and model the transport and dispersal of water or magma over large geographic areas. Understanding these flows can be crucial for mitigating the impacts of natural disasters.
Cubic feet per minute | Cubic kilometers per second |
---|---|
0
ft³/min
|
0
km³/s
|
10
ft³/min
|
4.71947e-12
km³/s
|
20
ft³/min
|
9.43894e-12
km³/s
|
30
ft³/min
|
1.41584e-11
km³/s
|
40
ft³/min
|
1.88779e-11
km³/s
|
50
ft³/min
|
2.35974e-11
km³/s
|
60
ft³/min
|
2.83168e-11
km³/s
|
70
ft³/min
|
3.30363e-11
km³/s
|
80
ft³/min
|
3.77558e-11
km³/s
|
90
ft³/min
|
4.24752e-11
km³/s
|
100
ft³/min
|
4.71947e-11
km³/s
|
110
ft³/min
|
5.19142e-11
km³/s
|
120
ft³/min
|
5.66337e-11
km³/s
|
130
ft³/min
|
6.13531e-11
km³/s
|
140
ft³/min
|
6.60726e-11
km³/s
|
150
ft³/min
|
7.07921e-11
km³/s
|
160
ft³/min
|
7.55116e-11
km³/s
|
170
ft³/min
|
8.02310e-11
km³/s
|
180
ft³/min
|
8.49505e-11
km³/s
|
190
ft³/min
|
8.967e-11
km³/s
|
200
ft³/min
|
9.43894e-11
km³/s
|
210
ft³/min
|
9.91089e-11
km³/s
|
220
ft³/min
|
1.03828e-10
km³/s
|
230
ft³/min
|
1.08548e-10
km³/s
|
240
ft³/min
|
1.13267e-10
km³/s
|
250
ft³/min
|
1.17987e-10
km³/s
|
260
ft³/min
|
1.22706e-10
km³/s
|
270
ft³/min
|
1.27426e-10
km³/s
|
280
ft³/min
|
1.32145e-10
km³/s
|
290
ft³/min
|
1.36865e-10
km³/s
|
300
ft³/min
|
1.41584e-10
km³/s
|
310
ft³/min
|
1.46304e-10
km³/s
|
320
ft³/min
|
1.51023e-10
km³/s
|
330
ft³/min
|
1.55743e-10
km³/s
|
340
ft³/min
|
1.60462e-10
km³/s
|
350
ft³/min
|
1.65182e-10
km³/s
|
360
ft³/min
|
1.69901e-10
km³/s
|
370
ft³/min
|
1.7462e-10
km³/s
|
380
ft³/min
|
1.7934e-10
km³/s
|
390
ft³/min
|
1.84059e-10
km³/s
|
400
ft³/min
|
1.88779e-10
km³/s
|
410
ft³/min
|
1.93498e-10
km³/s
|
420
ft³/min
|
1.98218e-10
km³/s
|
430
ft³/min
|
2.02937e-10
km³/s
|
440
ft³/min
|
2.07657e-10
km³/s
|
450
ft³/min
|
2.12376e-10
km³/s
|
460
ft³/min
|
2.17096e-10
km³/s
|
470
ft³/min
|
2.21815e-10
km³/s
|
480
ft³/min
|
2.26535e-10
km³/s
|
490
ft³/min
|
2.31254e-10
km³/s
|
500
ft³/min
|
2.35974e-10
km³/s
|
510
ft³/min
|
2.40693e-10
km³/s
|
520
ft³/min
|
2.45413e-10
km³/s
|
530
ft³/min
|
2.50132e-10
km³/s
|
540
ft³/min
|
2.54851e-10
km³/s
|
550
ft³/min
|
2.59571e-10
km³/s
|
560
ft³/min
|
2.6429e-10
km³/s
|
570
ft³/min
|
2.69010e-10
km³/s
|
580
ft³/min
|
2.73729e-10
km³/s
|
590
ft³/min
|
2.78449e-10
km³/s
|
600
ft³/min
|
2.83168e-10
km³/s
|
610
ft³/min
|
2.87888e-10
km³/s
|
620
ft³/min
|
2.92607e-10
km³/s
|
630
ft³/min
|
2.97327e-10
km³/s
|
640
ft³/min
|
3.02046e-10
km³/s
|
650
ft³/min
|
3.06766e-10
km³/s
|
660
ft³/min
|
3.11485e-10
km³/s
|
670
ft³/min
|
3.16205e-10
km³/s
|
680
ft³/min
|
3.20924e-10
km³/s
|
690
ft³/min
|
3.25644e-10
km³/s
|
700
ft³/min
|
3.30363e-10
km³/s
|
710
ft³/min
|
3.35083e-10
km³/s
|
720
ft³/min
|
3.39802e-10
km³/s
|
730
ft³/min
|
3.44521e-10
km³/s
|
740
ft³/min
|
3.49241e-10
km³/s
|
750
ft³/min
|
3.5396e-10
km³/s
|
760
ft³/min
|
3.5868e-10
km³/s
|
770
ft³/min
|
3.63399e-10
km³/s
|
780
ft³/min
|
3.68119e-10
km³/s
|
790
ft³/min
|
3.72838e-10
km³/s
|
800
ft³/min
|
3.77558e-10
km³/s
|
810
ft³/min
|
3.82277e-10
km³/s
|
820
ft³/min
|
3.86997e-10
km³/s
|
830
ft³/min
|
3.91716e-10
km³/s
|
840
ft³/min
|
3.96436e-10
km³/s
|
850
ft³/min
|
4.01155e-10
km³/s
|
860
ft³/min
|
4.05875e-10
km³/s
|
870
ft³/min
|
4.10594e-10
km³/s
|
880
ft³/min
|
4.15314e-10
km³/s
|
890
ft³/min
|
4.20033e-10
km³/s
|
900
ft³/min
|
4.24752e-10
km³/s
|
910
ft³/min
|
4.29472e-10
km³/s
|
920
ft³/min
|
4.34191e-10
km³/s
|
930
ft³/min
|
4.38911e-10
km³/s
|
940
ft³/min
|
4.4363e-10
km³/s
|
950
ft³/min
|
4.4835e-10
km³/s
|
960
ft³/min
|
4.53069e-10
km³/s
|
970
ft³/min
|
4.57789e-10
km³/s
|
980
ft³/min
|
4.62508e-10
km³/s
|
990
ft³/min
|
4.67228e-10
km³/s
|
1000
ft³/min
|
4.71947e-10
km³/s
|
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