Gallon per minute (GPM) is a crucial unit in measuring flow rate, especially in the context of plumbing, irrigation, and various industrial applications. Originally rooted in the British Imperial system, the gallon has a rich history with variations across countries—such as the US liquid gallon, which is approximately 3.785 liters, and the UK gallon, which is around 4.546 liters. This means that when considering flow rates, the distinction between these gallons can lead to significant differences in calculation and application.
What’s particularly fascinating about GPM is its pivotal role in modern sustainability efforts. For example, showerheads in the United States are often rated by their GPM to help reduce water usage and promote conservation. Low-flow fixtures, which typically limit water flow to 2.5 GPM or less, have become a standard in reducing both water waste and energy costs, highlighting the intersection of environmental responsibility and engineering.
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.
Gallons per minute | Kilolitres per hour |
---|---|
0
gal/min
|
0
kl/h
|
10
gal/min
|
2.27125
kl/h
|
20
gal/min
|
4.54249
kl/h
|
30
gal/min
|
6.81374
kl/h
|
40
gal/min
|
9.08499
kl/h
|
50
gal/min
|
11.35624
kl/h
|
60
gal/min
|
13.62748
kl/h
|
70
gal/min
|
15.89873
kl/h
|
80
gal/min
|
18.16998
kl/h
|
90
gal/min
|
20.44122
kl/h
|
100
gal/min
|
22.71247
kl/h
|
110
gal/min
|
24.98372
kl/h
|
120
gal/min
|
27.25496
kl/h
|
130
gal/min
|
29.52621
kl/h
|
140
gal/min
|
31.79746
kl/h
|
150
gal/min
|
34.06871
kl/h
|
160
gal/min
|
36.33995
kl/h
|
170
gal/min
|
38.6112
kl/h
|
180
gal/min
|
40.88245
kl/h
|
190
gal/min
|
43.15369
kl/h
|
200
gal/min
|
45.42494
kl/h
|
210
gal/min
|
47.69619
kl/h
|
220
gal/min
|
49.96744
kl/h
|
230
gal/min
|
52.23868
kl/h
|
240
gal/min
|
54.50993
kl/h
|
250
gal/min
|
56.78118
kl/h
|
260
gal/min
|
59.05242
kl/h
|
270
gal/min
|
61.32367
kl/h
|
280
gal/min
|
63.59492
kl/h
|
290
gal/min
|
65.86617
kl/h
|
300
gal/min
|
68.13741
kl/h
|
310
gal/min
|
70.40866
kl/h
|
320
gal/min
|
72.67991
kl/h
|
330
gal/min
|
74.95115
kl/h
|
340
gal/min
|
77.2224
kl/h
|
350
gal/min
|
79.49365
kl/h
|
360
gal/min
|
81.76489
kl/h
|
370
gal/min
|
84.03614
kl/h
|
380
gal/min
|
86.30739
kl/h
|
390
gal/min
|
88.57864
kl/h
|
400
gal/min
|
90.84988
kl/h
|
410
gal/min
|
93.12113
kl/h
|
420
gal/min
|
95.39238
kl/h
|
430
gal/min
|
97.66362
kl/h
|
440
gal/min
|
99.93487
kl/h
|
450
gal/min
|
102.20612
kl/h
|
460
gal/min
|
104.47737
kl/h
|
470
gal/min
|
106.74861
kl/h
|
480
gal/min
|
109.01986
kl/h
|
490
gal/min
|
111.29111
kl/h
|
500
gal/min
|
113.56235
kl/h
|
510
gal/min
|
115.8336
kl/h
|
520
gal/min
|
118.10485
kl/h
|
530
gal/min
|
120.37609
kl/h
|
540
gal/min
|
122.64734
kl/h
|
550
gal/min
|
124.91859
kl/h
|
560
gal/min
|
127.18984
kl/h
|
570
gal/min
|
129.46108
kl/h
|
580
gal/min
|
131.73233
kl/h
|
590
gal/min
|
134.00358
kl/h
|
600
gal/min
|
136.27482
kl/h
|
610
gal/min
|
138.54607
kl/h
|
620
gal/min
|
140.81732
kl/h
|
630
gal/min
|
143.08857
kl/h
|
640
gal/min
|
145.35981
kl/h
|
650
gal/min
|
147.63106
kl/h
|
660
gal/min
|
149.90231
kl/h
|
670
gal/min
|
152.17355
kl/h
|
680
gal/min
|
154.4448
kl/h
|
690
gal/min
|
156.71605
kl/h
|
700
gal/min
|
158.98729
kl/h
|
710
gal/min
|
161.25854
kl/h
|
720
gal/min
|
163.52979
kl/h
|
730
gal/min
|
165.80104
kl/h
|
740
gal/min
|
168.07228
kl/h
|
750
gal/min
|
170.34353
kl/h
|
760
gal/min
|
172.61478
kl/h
|
770
gal/min
|
174.88602
kl/h
|
780
gal/min
|
177.15727
kl/h
|
790
gal/min
|
179.42852
kl/h
|
800
gal/min
|
181.69977
kl/h
|
810
gal/min
|
183.97101
kl/h
|
820
gal/min
|
186.24226
kl/h
|
830
gal/min
|
188.51351
kl/h
|
840
gal/min
|
190.78475
kl/h
|
850
gal/min
|
193.056
kl/h
|
860
gal/min
|
195.32725
kl/h
|
870
gal/min
|
197.5985
kl/h
|
880
gal/min
|
199.86974
kl/h
|
890
gal/min
|
202.14099
kl/h
|
900
gal/min
|
204.41224
kl/h
|
910
gal/min
|
206.68348
kl/h
|
920
gal/min
|
208.95473
kl/h
|
930
gal/min
|
211.22598
kl/h
|
940
gal/min
|
213.49722
kl/h
|
950
gal/min
|
215.76847
kl/h
|
960
gal/min
|
218.03972
kl/h
|
970
gal/min
|
220.31097
kl/h
|
980
gal/min
|
222.58221
kl/h
|
990
gal/min
|
224.85346
kl/h
|
1000
gal/min
|
227.12471
kl/h
|
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