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 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 minute | Cubic meters per day |
---|---|
0
ft³/min
|
0
m³/d
|
10
ft³/min
|
407.76238
m³/d
|
20
ft³/min
|
815.52476
m³/d
|
30
ft³/min
|
1223.28714
m³/d
|
40
ft³/min
|
1631.04952
m³/d
|
50
ft³/min
|
2038.8119
m³/d
|
60
ft³/min
|
2446.57428
m³/d
|
70
ft³/min
|
2854.33667
m³/d
|
80
ft³/min
|
3262.09905
m³/d
|
90
ft³/min
|
3669.86143
m³/d
|
100
ft³/min
|
4077.62381
m³/d
|
110
ft³/min
|
4485.38619
m³/d
|
120
ft³/min
|
4893.14857
m³/d
|
130
ft³/min
|
5300.91095
m³/d
|
140
ft³/min
|
5708.67333
m³/d
|
150
ft³/min
|
6116.43571
m³/d
|
160
ft³/min
|
6524.19809
m³/d
|
170
ft³/min
|
6931.96047
m³/d
|
180
ft³/min
|
7339.72285
m³/d
|
190
ft³/min
|
7747.48523
m³/d
|
200
ft³/min
|
8155.24762
m³/d
|
210
ft³/min
|
8563.01
m³/d
|
220
ft³/min
|
8970.77238
m³/d
|
230
ft³/min
|
9378.53476
m³/d
|
240
ft³/min
|
9786.29714
m³/d
|
250
ft³/min
|
10194.05952
m³/d
|
260
ft³/min
|
10601.8219
m³/d
|
270
ft³/min
|
11009.58428
m³/d
|
280
ft³/min
|
11417.34666
m³/d
|
290
ft³/min
|
11825.10904
m³/d
|
300
ft³/min
|
12232.87142
m³/d
|
310
ft³/min
|
12640.6338
m³/d
|
320
ft³/min
|
13048.39619
m³/d
|
330
ft³/min
|
13456.15857
m³/d
|
340
ft³/min
|
13863.92095
m³/d
|
350
ft³/min
|
14271.68333
m³/d
|
360
ft³/min
|
14679.44571
m³/d
|
370
ft³/min
|
15087.20809
m³/d
|
380
ft³/min
|
15494.97047
m³/d
|
390
ft³/min
|
15902.73285
m³/d
|
400
ft³/min
|
16310.49523
m³/d
|
410
ft³/min
|
16718.25761
m³/d
|
420
ft³/min
|
17126.02
m³/d
|
430
ft³/min
|
17533.78237
m³/d
|
440
ft³/min
|
17941.54475
m³/d
|
450
ft³/min
|
18349.30714
m³/d
|
460
ft³/min
|
18757.06952
m³/d
|
470
ft³/min
|
19164.8319
m³/d
|
480
ft³/min
|
19572.59428
m³/d
|
490
ft³/min
|
19980.35666
m³/d
|
500
ft³/min
|
20388.11904
m³/d
|
510
ft³/min
|
20795.88142
m³/d
|
520
ft³/min
|
21203.6438
m³/d
|
530
ft³/min
|
21611.40618
m³/d
|
540
ft³/min
|
22019.16856
m³/d
|
550
ft³/min
|
22426.93094
m³/d
|
560
ft³/min
|
22834.69332
m³/d
|
570
ft³/min
|
23242.4557
m³/d
|
580
ft³/min
|
23650.21809
m³/d
|
590
ft³/min
|
24057.98047
m³/d
|
600
ft³/min
|
24465.74285
m³/d
|
610
ft³/min
|
24873.50523
m³/d
|
620
ft³/min
|
25281.26761
m³/d
|
630
ft³/min
|
25689.02999
m³/d
|
640
ft³/min
|
26096.79237
m³/d
|
650
ft³/min
|
26504.55475
m³/d
|
660
ft³/min
|
26912.31713
m³/d
|
670
ft³/min
|
27320.07951
m³/d
|
680
ft³/min
|
27727.84189
m³/d
|
690
ft³/min
|
28135.60427
m³/d
|
700
ft³/min
|
28543.36665
m³/d
|
710
ft³/min
|
28951.12904
m³/d
|
720
ft³/min
|
29358.89142
m³/d
|
730
ft³/min
|
29766.6538
m³/d
|
740
ft³/min
|
30174.41618
m³/d
|
750
ft³/min
|
30582.17856
m³/d
|
760
ft³/min
|
30989.94094
m³/d
|
770
ft³/min
|
31397.70332
m³/d
|
780
ft³/min
|
31805.4657
m³/d
|
790
ft³/min
|
32213.22808
m³/d
|
800
ft³/min
|
32620.99046
m³/d
|
810
ft³/min
|
33028.75284
m³/d
|
820
ft³/min
|
33436.51522
m³/d
|
830
ft³/min
|
33844.2776
m³/d
|
840
ft³/min
|
34252.03999
m³/d
|
850
ft³/min
|
34659.80237
m³/d
|
860
ft³/min
|
35067.56475
m³/d
|
870
ft³/min
|
35475.32713
m³/d
|
880
ft³/min
|
35883.08951
m³/d
|
890
ft³/min
|
36290.85189
m³/d
|
900
ft³/min
|
36698.61427
m³/d
|
910
ft³/min
|
37106.37665
m³/d
|
920
ft³/min
|
37514.13903
m³/d
|
930
ft³/min
|
37921.90141
m³/d
|
940
ft³/min
|
38329.66379
m³/d
|
950
ft³/min
|
38737.42617
m³/d
|
960
ft³/min
|
39145.18856
m³/d
|
970
ft³/min
|
39552.95094
m³/d
|
980
ft³/min
|
39960.71332
m³/d
|
990
ft³/min
|
40368.4757
m³/d
|
1000
ft³/min
|
40776.23808
m³/d
|
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