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 foot per hour is a unit of volumetric flow rate, measuring how much volume flows through a system per hour. While you might not think about it daily, this unit plays a crucial role in sectors like natural gas distribution and HVAC systems, where precise measurement of air or fluid flow is essential for efficiency and safety. Interestingly, in the U.S., a substantial portion of homes rely on natural gas, and understanding its flow in cubic feet per hour can optimize household energy usage and reduce carbon footprints.
Moreover, recognizing changes in flow rates measured in cubic feet per hour can be an indicator of system inefficiencies or leaks, prompting timely maintenance and ensuring operational efficacy. This unit is a key player behind the scenes in ensuring that systems run smoothly and resources aren’t wasted.
Cubic feet per minute | Cubic feet per hour |
---|---|
0
ft³/min
|
0
ft³/h
|
10
ft³/min
|
600
ft³/h
|
20
ft³/min
|
1200
ft³/h
|
30
ft³/min
|
1800
ft³/h
|
40
ft³/min
|
2400
ft³/h
|
50
ft³/min
|
3000
ft³/h
|
60
ft³/min
|
3600
ft³/h
|
70
ft³/min
|
4200
ft³/h
|
80
ft³/min
|
4800
ft³/h
|
90
ft³/min
|
5400
ft³/h
|
100
ft³/min
|
6000
ft³/h
|
110
ft³/min
|
6600
ft³/h
|
120
ft³/min
|
7200
ft³/h
|
130
ft³/min
|
7800
ft³/h
|
140
ft³/min
|
8400
ft³/h
|
150
ft³/min
|
9000
ft³/h
|
160
ft³/min
|
9600
ft³/h
|
170
ft³/min
|
10200
ft³/h
|
180
ft³/min
|
10800
ft³/h
|
190
ft³/min
|
11400
ft³/h
|
200
ft³/min
|
12000
ft³/h
|
210
ft³/min
|
12600
ft³/h
|
220
ft³/min
|
13200
ft³/h
|
230
ft³/min
|
13800
ft³/h
|
240
ft³/min
|
14400
ft³/h
|
250
ft³/min
|
15000
ft³/h
|
260
ft³/min
|
15600
ft³/h
|
270
ft³/min
|
16200
ft³/h
|
280
ft³/min
|
16800
ft³/h
|
290
ft³/min
|
17400
ft³/h
|
300
ft³/min
|
18000
ft³/h
|
310
ft³/min
|
18600
ft³/h
|
320
ft³/min
|
19200
ft³/h
|
330
ft³/min
|
19800
ft³/h
|
340
ft³/min
|
20400
ft³/h
|
350
ft³/min
|
21000
ft³/h
|
360
ft³/min
|
21600
ft³/h
|
370
ft³/min
|
22200
ft³/h
|
380
ft³/min
|
22800
ft³/h
|
390
ft³/min
|
23400
ft³/h
|
400
ft³/min
|
24000
ft³/h
|
410
ft³/min
|
24600
ft³/h
|
420
ft³/min
|
25200
ft³/h
|
430
ft³/min
|
25800
ft³/h
|
440
ft³/min
|
26400
ft³/h
|
450
ft³/min
|
27000
ft³/h
|
460
ft³/min
|
27600
ft³/h
|
470
ft³/min
|
28200
ft³/h
|
480
ft³/min
|
28800
ft³/h
|
490
ft³/min
|
29400
ft³/h
|
500
ft³/min
|
30000
ft³/h
|
510
ft³/min
|
30600
ft³/h
|
520
ft³/min
|
31200
ft³/h
|
530
ft³/min
|
31800
ft³/h
|
540
ft³/min
|
32400
ft³/h
|
550
ft³/min
|
33000
ft³/h
|
560
ft³/min
|
33600
ft³/h
|
570
ft³/min
|
34200
ft³/h
|
580
ft³/min
|
34800
ft³/h
|
590
ft³/min
|
35400
ft³/h
|
600
ft³/min
|
36000
ft³/h
|
610
ft³/min
|
36600
ft³/h
|
620
ft³/min
|
37200
ft³/h
|
630
ft³/min
|
37800
ft³/h
|
640
ft³/min
|
38400
ft³/h
|
650
ft³/min
|
39000
ft³/h
|
660
ft³/min
|
39600
ft³/h
|
670
ft³/min
|
40200
ft³/h
|
680
ft³/min
|
40800
ft³/h
|
690
ft³/min
|
41400
ft³/h
|
700
ft³/min
|
42000
ft³/h
|
710
ft³/min
|
42600
ft³/h
|
720
ft³/min
|
43200
ft³/h
|
730
ft³/min
|
43800
ft³/h
|
740
ft³/min
|
44400
ft³/h
|
750
ft³/min
|
45000
ft³/h
|
760
ft³/min
|
45600
ft³/h
|
770
ft³/min
|
46200
ft³/h
|
780
ft³/min
|
46800
ft³/h
|
790
ft³/min
|
47400
ft³/h
|
800
ft³/min
|
48000
ft³/h
|
810
ft³/min
|
48600
ft³/h
|
820
ft³/min
|
49200
ft³/h
|
830
ft³/min
|
49800
ft³/h
|
840
ft³/min
|
50400
ft³/h
|
850
ft³/min
|
51000
ft³/h
|
860
ft³/min
|
51600
ft³/h
|
870
ft³/min
|
52200
ft³/h
|
880
ft³/min
|
52800
ft³/h
|
890
ft³/min
|
53400
ft³/h
|
900
ft³/min
|
54000
ft³/h
|
910
ft³/min
|
54600
ft³/h
|
920
ft³/min
|
55200
ft³/h
|
930
ft³/min
|
55800
ft³/h
|
940
ft³/min
|
56400
ft³/h
|
950
ft³/min
|
57000
ft³/h
|
960
ft³/min
|
57600
ft³/h
|
970
ft³/min
|
58200
ft³/h
|
980
ft³/min
|
58800
ft³/h
|
990
ft³/min
|
59400
ft³/h
|
1000
ft³/min
|
60000
ft³/h
|
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