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.
A kilolitre per hour (kl/h) is a unit of volumetric flow rate often used in industrial and engineering applications to measure the amount of fluid moving through a system each hour. One kilolitre is equivalent to 1,000 liters, so a flow rate of 1 kl/h corresponds to 1,000 liters being transported in one hour. This unit is particularly favored in contexts such as water supply management, wastewater treatment, and various chemical processes, where large volumes of liquids are routinely processed.
Interestingly, the use of kilolitres per hour can help simplify calculations and improve efficiency for large-scale operations by allowing easy conversion and comparison with daily or even yearly flow rates. As global demand for efficient water management increases, understanding and leveraging these units become ever more crucial for engineers and environmental scientists alike.
Cubic feet per minute | Kilolitres per hour |
---|---|
0
ft³/min
|
0
kl/h
|
10
ft³/min
|
16.9901
kl/h
|
20
ft³/min
|
33.9802
kl/h
|
30
ft³/min
|
50.9703
kl/h
|
40
ft³/min
|
67.9604
kl/h
|
50
ft³/min
|
84.9505
kl/h
|
60
ft³/min
|
101.9406
kl/h
|
70
ft³/min
|
118.93069
kl/h
|
80
ft³/min
|
135.92079
kl/h
|
90
ft³/min
|
152.91089
kl/h
|
100
ft³/min
|
169.90099
kl/h
|
110
ft³/min
|
186.89109
kl/h
|
120
ft³/min
|
203.88119
kl/h
|
130
ft³/min
|
220.87129
kl/h
|
140
ft³/min
|
237.86139
kl/h
|
150
ft³/min
|
254.85149
kl/h
|
160
ft³/min
|
271.84159
kl/h
|
170
ft³/min
|
288.83169
kl/h
|
180
ft³/min
|
305.82179
kl/h
|
190
ft³/min
|
322.81188
kl/h
|
200
ft³/min
|
339.80198
kl/h
|
210
ft³/min
|
356.79208
kl/h
|
220
ft³/min
|
373.78218
kl/h
|
230
ft³/min
|
390.77228
kl/h
|
240
ft³/min
|
407.76238
kl/h
|
250
ft³/min
|
424.75248
kl/h
|
260
ft³/min
|
441.74258
kl/h
|
270
ft³/min
|
458.73268
kl/h
|
280
ft³/min
|
475.72278
kl/h
|
290
ft³/min
|
492.71288
kl/h
|
300
ft³/min
|
509.70298
kl/h
|
310
ft³/min
|
526.69308
kl/h
|
320
ft³/min
|
543.68317
kl/h
|
330
ft³/min
|
560.67327
kl/h
|
340
ft³/min
|
577.66337
kl/h
|
350
ft³/min
|
594.65347
kl/h
|
360
ft³/min
|
611.64357
kl/h
|
370
ft³/min
|
628.63367
kl/h
|
380
ft³/min
|
645.62377
kl/h
|
390
ft³/min
|
662.61387
kl/h
|
400
ft³/min
|
679.60397
kl/h
|
410
ft³/min
|
696.59407
kl/h
|
420
ft³/min
|
713.58417
kl/h
|
430
ft³/min
|
730.57427
kl/h
|
440
ft³/min
|
747.56436
kl/h
|
450
ft³/min
|
764.55446
kl/h
|
460
ft³/min
|
781.54456
kl/h
|
470
ft³/min
|
798.53466
kl/h
|
480
ft³/min
|
815.52476
kl/h
|
490
ft³/min
|
832.51486
kl/h
|
500
ft³/min
|
849.50496
kl/h
|
510
ft³/min
|
866.49506
kl/h
|
520
ft³/min
|
883.48516
kl/h
|
530
ft³/min
|
900.47526
kl/h
|
540
ft³/min
|
917.46536
kl/h
|
550
ft³/min
|
934.45546
kl/h
|
560
ft³/min
|
951.44556
kl/h
|
570
ft³/min
|
968.43565
kl/h
|
580
ft³/min
|
985.42575
kl/h
|
590
ft³/min
|
1002.41585
kl/h
|
600
ft³/min
|
1019.40595
kl/h
|
610
ft³/min
|
1036.39605
kl/h
|
620
ft³/min
|
1053.38615
kl/h
|
630
ft³/min
|
1070.37625
kl/h
|
640
ft³/min
|
1087.36635
kl/h
|
650
ft³/min
|
1104.35645
kl/h
|
660
ft³/min
|
1121.34655
kl/h
|
670
ft³/min
|
1138.33665
kl/h
|
680
ft³/min
|
1155.32675
kl/h
|
690
ft³/min
|
1172.31684
kl/h
|
700
ft³/min
|
1189.30694
kl/h
|
710
ft³/min
|
1206.29704
kl/h
|
720
ft³/min
|
1223.28714
kl/h
|
730
ft³/min
|
1240.27724
kl/h
|
740
ft³/min
|
1257.26734
kl/h
|
750
ft³/min
|
1274.25744
kl/h
|
760
ft³/min
|
1291.24754
kl/h
|
770
ft³/min
|
1308.23764
kl/h
|
780
ft³/min
|
1325.22774
kl/h
|
790
ft³/min
|
1342.21784
kl/h
|
800
ft³/min
|
1359.20794
kl/h
|
810
ft³/min
|
1376.19804
kl/h
|
820
ft³/min
|
1393.18813
kl/h
|
830
ft³/min
|
1410.17823
kl/h
|
840
ft³/min
|
1427.16833
kl/h
|
850
ft³/min
|
1444.15843
kl/h
|
860
ft³/min
|
1461.14853
kl/h
|
870
ft³/min
|
1478.13863
kl/h
|
880
ft³/min
|
1495.12873
kl/h
|
890
ft³/min
|
1512.11883
kl/h
|
900
ft³/min
|
1529.10893
kl/h
|
910
ft³/min
|
1546.09903
kl/h
|
920
ft³/min
|
1563.08913
kl/h
|
930
ft³/min
|
1580.07923
kl/h
|
940
ft³/min
|
1597.06932
kl/h
|
950
ft³/min
|
1614.05942
kl/h
|
960
ft³/min
|
1631.04952
kl/h
|
970
ft³/min
|
1648.03962
kl/h
|
980
ft³/min
|
1665.02972
kl/h
|
990
ft³/min
|
1682.01982
kl/h
|
1000
ft³/min
|
1699.00992
kl/h
|
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