The kilogram per second (kg/s) is a fascinating unit of mass flow rate, representing the amount of mass passing through a reference point each second. It is especially crucial in fields like fluid dynamics and engineering, where understanding the rate at which mass moves through pipelines, engines, or reactors is vital for efficiency and safety.
In the context of a fire hose, a flow rate of around 10 kg/s is enough to fill a standard-sized bathtub in just one minute. On a larger scale, think of the vast rivers: the Amazon River, the planet’s largest, discharges water at an astounding rate of approximately 209,000 kg/s on average, offering a glimpse into the immense natural movements of mass and energy on Earth.
The “pound per hour” (lb/h) is a unit of flow rate often used in engineering and manufacturing to describe the mass of a substance, such as steam or fuel, moving through a system over time. While commonly associated with industrial processes, this unit plays a crucial role in everyday appliances, like HVAC systems, to ensure optimal performance and energy efficiency by precisely managing the flow of refrigerant or air.
Historically, the pound per hour measurement gained prominence during the Industrial Revolution when steam engines were vital for transportation and industry. By calculating steam flow in pounds per hour, engineers of the time could effectively control machinery, optimize fuel use, and enhance productivity—a legacy that continues to influence modern engineering practices.
Kilograms per second | Pounds per hour |
---|---|
0
kg/s
|
0
lb/h
|
1
kg/s
|
7936.64791
lb/h
|
2
kg/s
|
15873.29583
lb/h
|
3
kg/s
|
23809.94374
lb/h
|
4
kg/s
|
31746.59165
lb/h
|
5
kg/s
|
39683.23956
lb/h
|
6
kg/s
|
47619.88748
lb/h
|
7
kg/s
|
55556.53539
lb/h
|
8
kg/s
|
63493.1833
lb/h
|
9
kg/s
|
71429.83121
lb/h
|
10
kg/s
|
79366.47913
lb/h
|
11
kg/s
|
87303.12704
lb/h
|
12
kg/s
|
95239.77495
lb/h
|
13
kg/s
|
103176.42286
lb/h
|
14
kg/s
|
111113.07078
lb/h
|
15
kg/s
|
119049.71869
lb/h
|
16
kg/s
|
126986.3666
lb/h
|
17
kg/s
|
134923.01452
lb/h
|
18
kg/s
|
142859.66243
lb/h
|
19
kg/s
|
150796.31034
lb/h
|
20
kg/s
|
158732.95825
lb/h
|
21
kg/s
|
166669.60617
lb/h
|
22
kg/s
|
174606.25408
lb/h
|
23
kg/s
|
182542.90199
lb/h
|
24
kg/s
|
190479.5499
lb/h
|
25
kg/s
|
198416.19782
lb/h
|
26
kg/s
|
206352.84573
lb/h
|
27
kg/s
|
214289.49364
lb/h
|
28
kg/s
|
222226.14155
lb/h
|
29
kg/s
|
230162.78947
lb/h
|
30
kg/s
|
238099.43738
lb/h
|
31
kg/s
|
246036.08529
lb/h
|
32
kg/s
|
253972.73321
lb/h
|
33
kg/s
|
261909.38112
lb/h
|
34
kg/s
|
269846.02903
lb/h
|
35
kg/s
|
277782.67694
lb/h
|
36
kg/s
|
285719.32486
lb/h
|
37
kg/s
|
293655.97277
lb/h
|
38
kg/s
|
301592.62068
lb/h
|
39
kg/s
|
309529.26859
lb/h
|
40
kg/s
|
317465.91651
lb/h
|
41
kg/s
|
325402.56442
lb/h
|
42
kg/s
|
333339.21233
lb/h
|
43
kg/s
|
341275.86024
lb/h
|
44
kg/s
|
349212.50816
lb/h
|
45
kg/s
|
357149.15607
lb/h
|
46
kg/s
|
365085.80398
lb/h
|
47
kg/s
|
373022.4519
lb/h
|
48
kg/s
|
380959.09981
lb/h
|
49
kg/s
|
388895.74772
lb/h
|
50
kg/s
|
396832.39563
lb/h
|
51
kg/s
|
404769.04355
lb/h
|
52
kg/s
|
412705.69146
lb/h
|
53
kg/s
|
420642.33937
lb/h
|
54
kg/s
|
428578.98728
lb/h
|
55
kg/s
|
436515.6352
lb/h
|
56
kg/s
|
444452.28311
lb/h
|
57
kg/s
|
452388.93102
lb/h
|
58
kg/s
|
460325.57893
lb/h
|
59
kg/s
|
468262.22685
lb/h
|
60
kg/s
|
476198.87476
lb/h
|
61
kg/s
|
484135.52267
lb/h
|
62
kg/s
|
492072.17059
lb/h
|
63
kg/s
|
500008.8185
lb/h
|
64
kg/s
|
507945.46641
lb/h
|
65
kg/s
|
515882.11432
lb/h
|
66
kg/s
|
523818.76224
lb/h
|
67
kg/s
|
531755.41015
lb/h
|
68
kg/s
|
539692.05806
lb/h
|
69
kg/s
|
547628.70597
lb/h
|
70
kg/s
|
555565.35389
lb/h
|
71
kg/s
|
563502.0018
lb/h
|
72
kg/s
|
571438.64971
lb/h
|
73
kg/s
|
579375.29762
lb/h
|
74
kg/s
|
587311.94554
lb/h
|
75
kg/s
|
595248.59345
lb/h
|
76
kg/s
|
603185.24136
lb/h
|
77
kg/s
|
611121.88927
lb/h
|
78
kg/s
|
619058.53719
lb/h
|
79
kg/s
|
626995.1851
lb/h
|
80
kg/s
|
634931.83301
lb/h
|
81
kg/s
|
642868.48093
lb/h
|
82
kg/s
|
650805.12884
lb/h
|
83
kg/s
|
658741.77675
lb/h
|
84
kg/s
|
666678.42466
lb/h
|
85
kg/s
|
674615.07258
lb/h
|
86
kg/s
|
682551.72049
lb/h
|
87
kg/s
|
690488.3684
lb/h
|
88
kg/s
|
698425.01631
lb/h
|
89
kg/s
|
706361.66423
lb/h
|
90
kg/s
|
714298.31214
lb/h
|
91
kg/s
|
722234.96005
lb/h
|
92
kg/s
|
730171.60796
lb/h
|
93
kg/s
|
738108.25588
lb/h
|
94
kg/s
|
746044.90379
lb/h
|
95
kg/s
|
753981.5517
lb/h
|
96
kg/s
|
761918.19962
lb/h
|
97
kg/s
|
769854.84753
lb/h
|
98
kg/s
|
777791.49544
lb/h
|
99
kg/s
|
785728.14335
lb/h
|
100
kg/s
|
793664.79127
lb/h
|
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