The watt, a unit of power in the International System of Units, is named after James Watt, the Scottish inventor who vastly improved the efficiency of steam engines in the 18th century. One watt is equivalent to one joule of energy per second, signifying how much energy is transferred or converted. Interestingly, a single watt is roughly the amount of power used by a human heart, pumping about 80 milliliters of blood per beat with a resting heart rate.
In our technology-driven society, watts are pivotal in understanding the energy consumption of electrical devices. For instance, a typical LED light bulb uses about 10 watts, significantly less than an incandescent bulb, highlighting the watt’s role in energy conservation. Moreover, the watt powers our world: everything from the brightness of light bulbs to the performance of supercomputers is measured in watts, underlining its importance in both everyday life and cutting-edge technology.
The kilowatt, a unit of power equal to 1,000 watts, is widely used to measure electricity consumption and production. Beyond its role in tracking household energy use, the kilowatt also plays a critical part in the automotive industry, especially with the rise of electric vehicles (EVs). Interestingly, while car enthusiasts often discuss horsepower, the power of EVs is typically rated in kilowatts. For instance, 1 kilowatt roughly equals 1.34 horsepower.
Moreover, the record for the highest wind turbine currently stands at generating a jaw-dropping 14 megawatts—14,000 kilowatts—sufficient to power thousands of homes annually. As sustainable energy solutions become prominent, the kilowatt serves as a crucial unit for understanding and advancing our energy-efficient future.
| Watts | Kilowatts |
|---|---|
0
W
|
0
kW
|
10
W
|
0.01
kW
|
20
W
|
0.02
kW
|
30
W
|
0.03
kW
|
40
W
|
0.04
kW
|
50
W
|
0.05
kW
|
60
W
|
0.06
kW
|
70
W
|
0.07
kW
|
80
W
|
0.08
kW
|
90
W
|
0.09
kW
|
100
W
|
0.1
kW
|
110
W
|
0.11
kW
|
120
W
|
0.12
kW
|
130
W
|
0.13
kW
|
140
W
|
0.14
kW
|
150
W
|
0.15
kW
|
160
W
|
0.16
kW
|
170
W
|
0.17
kW
|
180
W
|
0.18
kW
|
190
W
|
0.19
kW
|
200
W
|
0.2
kW
|
210
W
|
0.21
kW
|
220
W
|
0.22
kW
|
230
W
|
0.23
kW
|
240
W
|
0.24
kW
|
250
W
|
0.25
kW
|
260
W
|
0.26
kW
|
270
W
|
0.27
kW
|
280
W
|
0.28
kW
|
290
W
|
0.29
kW
|
300
W
|
0.3
kW
|
310
W
|
0.31
kW
|
320
W
|
0.32
kW
|
330
W
|
0.33
kW
|
340
W
|
0.34
kW
|
350
W
|
0.35
kW
|
360
W
|
0.36
kW
|
370
W
|
0.37
kW
|
380
W
|
0.38
kW
|
390
W
|
0.39
kW
|
400
W
|
0.4
kW
|
410
W
|
0.41
kW
|
420
W
|
0.42
kW
|
430
W
|
0.43
kW
|
440
W
|
0.44
kW
|
450
W
|
0.45
kW
|
460
W
|
0.46
kW
|
470
W
|
0.47
kW
|
480
W
|
0.48
kW
|
490
W
|
0.49
kW
|
500
W
|
0.5
kW
|
510
W
|
0.51
kW
|
520
W
|
0.52
kW
|
530
W
|
0.53
kW
|
540
W
|
0.54
kW
|
550
W
|
0.55
kW
|
560
W
|
0.56
kW
|
570
W
|
0.57
kW
|
580
W
|
0.58
kW
|
590
W
|
0.59
kW
|
600
W
|
0.6
kW
|
610
W
|
0.61
kW
|
620
W
|
0.62
kW
|
630
W
|
0.63
kW
|
640
W
|
0.64
kW
|
650
W
|
0.65
kW
|
660
W
|
0.66
kW
|
670
W
|
0.67
kW
|
680
W
|
0.68
kW
|
690
W
|
0.69
kW
|
700
W
|
0.7
kW
|
710
W
|
0.71
kW
|
720
W
|
0.72
kW
|
730
W
|
0.73
kW
|
740
W
|
0.74
kW
|
750
W
|
0.75
kW
|
760
W
|
0.76
kW
|
770
W
|
0.77
kW
|
780
W
|
0.78
kW
|
790
W
|
0.79
kW
|
800
W
|
0.8
kW
|
810
W
|
0.81
kW
|
820
W
|
0.82
kW
|
830
W
|
0.83
kW
|
840
W
|
0.84
kW
|
850
W
|
0.85
kW
|
860
W
|
0.86
kW
|
870
W
|
0.87
kW
|
880
W
|
0.88
kW
|
890
W
|
0.89
kW
|
900
W
|
0.9
kW
|
910
W
|
0.91
kW
|
920
W
|
0.92
kW
|
930
W
|
0.93
kW
|
940
W
|
0.94
kW
|
950
W
|
0.95
kW
|
960
W
|
0.96
kW
|
970
W
|
0.97
kW
|
980
W
|
0.98
kW
|
990
W
|
0.99
kW
|
1000
W
|
1
kW
|
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