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.
The kilolitre per second (kL/s) is a unit of flow rate used primarily in water management, representing the volume of one kilolitre, or 1,000 liters, flowing past a point every second. While the unit might not be as commonly recognized as liters per minute, it is vital in contexts requiring large-scale fluid flow measurements, such as calculating river discharges or managing wastewater treatment facilities. To put it in perspective, one kilolitre per second is equivalent to the flow rate of about 264 gallons per second, easily filling a standard swimming pool in just a few minutes.
Interestingly, understanding these flow rates becomes crucial during urban planning to ensure sustainable water management systems. It helps engineers design appropriate pipeline capacities and emergency spillways to prevent urban flooding. This illustrates the intersection of environmental sustainability and infrastructure planning, highlighting the kilolitre per second as a cornerstone unit in significant ecological and engineering applications.
Gallons per minute | Kilolitres per second |
---|---|
0
gal/min
|
0
kl/s
|
10
gal/min
|
0.000630902
kl/s
|
20
gal/min
|
0.0012618
kl/s
|
30
gal/min
|
0.00189271
kl/s
|
40
gal/min
|
0.00252361
kl/s
|
50
gal/min
|
0.00315451
kl/s
|
60
gal/min
|
0.00378541
kl/s
|
70
gal/min
|
0.00441631
kl/s
|
80
gal/min
|
0.00504722
kl/s
|
90
gal/min
|
0.00567812
kl/s
|
100
gal/min
|
0.00630902
kl/s
|
110
gal/min
|
0.00693992
kl/s
|
120
gal/min
|
0.00757082
kl/s
|
130
gal/min
|
0.00820173
kl/s
|
140
gal/min
|
0.00883263
kl/s
|
150
gal/min
|
0.00946353
kl/s
|
160
gal/min
|
0.0100944
kl/s
|
170
gal/min
|
0.0107253
kl/s
|
180
gal/min
|
0.0113562
kl/s
|
190
gal/min
|
0.0119871
kl/s
|
200
gal/min
|
0.012618
kl/s
|
210
gal/min
|
0.0132489
kl/s
|
220
gal/min
|
0.0138798
kl/s
|
230
gal/min
|
0.0145107
kl/s
|
240
gal/min
|
0.0151416
kl/s
|
250
gal/min
|
0.0157725
kl/s
|
260
gal/min
|
0.0164035
kl/s
|
270
gal/min
|
0.0170344
kl/s
|
280
gal/min
|
0.0176653
kl/s
|
290
gal/min
|
0.0182962
kl/s
|
300
gal/min
|
0.0189271
kl/s
|
310
gal/min
|
0.019558
kl/s
|
320
gal/min
|
0.0201889
kl/s
|
330
gal/min
|
0.0208198
kl/s
|
340
gal/min
|
0.0214507
kl/s
|
350
gal/min
|
0.0220816
kl/s
|
360
gal/min
|
0.0227125
kl/s
|
370
gal/min
|
0.0233434
kl/s
|
380
gal/min
|
0.0239743
kl/s
|
390
gal/min
|
0.0246052
kl/s
|
400
gal/min
|
0.0252361
kl/s
|
410
gal/min
|
0.025867
kl/s
|
420
gal/min
|
0.0264979
kl/s
|
430
gal/min
|
0.0271288
kl/s
|
440
gal/min
|
0.0277597
kl/s
|
450
gal/min
|
0.0283906
kl/s
|
460
gal/min
|
0.0290215
kl/s
|
470
gal/min
|
0.0296524
kl/s
|
480
gal/min
|
0.0302833
kl/s
|
490
gal/min
|
0.0309142
kl/s
|
500
gal/min
|
0.0315451
kl/s
|
510
gal/min
|
0.032176
kl/s
|
520
gal/min
|
0.0328069
kl/s
|
530
gal/min
|
0.0334378
kl/s
|
540
gal/min
|
0.0340687
kl/s
|
550
gal/min
|
0.0346996
kl/s
|
560
gal/min
|
0.0353305
kl/s
|
570
gal/min
|
0.0359614
kl/s
|
580
gal/min
|
0.0365923
kl/s
|
590
gal/min
|
0.0372232
kl/s
|
600
gal/min
|
0.0378541
kl/s
|
610
gal/min
|
0.038485
kl/s
|
620
gal/min
|
0.0391159
kl/s
|
630
gal/min
|
0.0397468
kl/s
|
640
gal/min
|
0.0403777
kl/s
|
650
gal/min
|
0.0410086
kl/s
|
660
gal/min
|
0.0416395
kl/s
|
670
gal/min
|
0.0422704
kl/s
|
680
gal/min
|
0.0429013
kl/s
|
690
gal/min
|
0.0435322
kl/s
|
700
gal/min
|
0.0441631
kl/s
|
710
gal/min
|
0.044794
kl/s
|
720
gal/min
|
0.0454249
kl/s
|
730
gal/min
|
0.0460558
kl/s
|
740
gal/min
|
0.0466867
kl/s
|
750
gal/min
|
0.0473176
kl/s
|
760
gal/min
|
0.0479485
kl/s
|
770
gal/min
|
0.0485795
kl/s
|
780
gal/min
|
0.0492104
kl/s
|
790
gal/min
|
0.0498413
kl/s
|
800
gal/min
|
0.0504722
kl/s
|
810
gal/min
|
0.0511031
kl/s
|
820
gal/min
|
0.051734
kl/s
|
830
gal/min
|
0.0523649
kl/s
|
840
gal/min
|
0.0529958
kl/s
|
850
gal/min
|
0.0536267
kl/s
|
860
gal/min
|
0.0542576
kl/s
|
870
gal/min
|
0.0548885
kl/s
|
880
gal/min
|
0.0555194
kl/s
|
890
gal/min
|
0.0561503
kl/s
|
900
gal/min
|
0.0567812
kl/s
|
910
gal/min
|
0.0574121
kl/s
|
920
gal/min
|
0.058043
kl/s
|
930
gal/min
|
0.0586739
kl/s
|
940
gal/min
|
0.0593048
kl/s
|
950
gal/min
|
0.0599357
kl/s
|
960
gal/min
|
0.0605666
kl/s
|
970
gal/min
|
0.0611975
kl/s
|
980
gal/min
|
0.0618284
kl/s
|
990
gal/min
|
0.0624593
kl/s
|
1000
gal/min
|
0.0630902
kl/s
|
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