Horsepower (metric) is a fascinating unit of measurement that dates back to the 18th century, when James Watt, the developer of the steam engine, sought to compare the power output of his engines to that of draft horses. The metric horsepower is defined as the amount of power required to lift a 75-kilogram mass one meter vertically in one second, which is equivalent to 735.5 watts. Interestingly, this unit persists in many regions, particularly in the automotive industry, where it is used to convey the strength of vehicle engines. Despite advancements in engine technology, the image of raw horsepower continues to captivate our imagination, embodying both history and precision engineering.
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.
| Horsepower (metric) | Watts |
|---|---|
0
PS
|
0
W
|
10
PS
|
7354.9875
W
|
20
PS
|
14709.975
W
|
30
PS
|
22064.9625
W
|
40
PS
|
29419.95
W
|
50
PS
|
36774.9375
W
|
60
PS
|
44129.925
W
|
70
PS
|
51484.9125
W
|
80
PS
|
58839.9
W
|
90
PS
|
66194.8875
W
|
100
PS
|
73549.875
W
|
110
PS
|
80904.8625
W
|
120
PS
|
88259.85
W
|
130
PS
|
95614.8375
W
|
140
PS
|
102969.825
W
|
150
PS
|
110324.8125
W
|
160
PS
|
117679.8
W
|
170
PS
|
125034.7875
W
|
180
PS
|
132389.775
W
|
190
PS
|
139744.7625
W
|
200
PS
|
147099.75
W
|
210
PS
|
154454.7375
W
|
220
PS
|
161809.725
W
|
230
PS
|
169164.7125
W
|
240
PS
|
176519.7
W
|
250
PS
|
183874.6875
W
|
260
PS
|
191229.675
W
|
270
PS
|
198584.6625
W
|
280
PS
|
205939.65
W
|
290
PS
|
213294.6375
W
|
300
PS
|
220649.625
W
|
310
PS
|
228004.6125
W
|
320
PS
|
235359.6
W
|
330
PS
|
242714.5875
W
|
340
PS
|
250069.575
W
|
350
PS
|
257424.5625
W
|
360
PS
|
264779.55
W
|
370
PS
|
272134.5375
W
|
380
PS
|
279489.525
W
|
390
PS
|
286844.5125
W
|
400
PS
|
294199.5
W
|
410
PS
|
301554.4875
W
|
420
PS
|
308909.475
W
|
430
PS
|
316264.4625
W
|
440
PS
|
323619.45
W
|
450
PS
|
330974.4375
W
|
460
PS
|
338329.425
W
|
470
PS
|
345684.4125
W
|
480
PS
|
353039.4
W
|
490
PS
|
360394.3875
W
|
500
PS
|
367749.375
W
|
510
PS
|
375104.3625
W
|
520
PS
|
382459.35
W
|
530
PS
|
389814.3375
W
|
540
PS
|
397169.325
W
|
550
PS
|
404524.3125
W
|
560
PS
|
411879.3
W
|
570
PS
|
419234.2875
W
|
580
PS
|
426589.275
W
|
590
PS
|
433944.2625
W
|
600
PS
|
441299.25
W
|
610
PS
|
448654.2375
W
|
620
PS
|
456009.225
W
|
630
PS
|
463364.2125
W
|
640
PS
|
470719.2
W
|
650
PS
|
478074.1875
W
|
660
PS
|
485429.175
W
|
670
PS
|
492784.1625
W
|
680
PS
|
500139.15
W
|
690
PS
|
507494.1375
W
|
700
PS
|
514849.125
W
|
710
PS
|
522204.1125
W
|
720
PS
|
529559.1
W
|
730
PS
|
536914.0875
W
|
740
PS
|
544269.075
W
|
750
PS
|
551624.0625
W
|
760
PS
|
558979.05
W
|
770
PS
|
566334.0375
W
|
780
PS
|
573689.025
W
|
790
PS
|
581044.0125
W
|
800
PS
|
588399
W
|
810
PS
|
595753.9875
W
|
820
PS
|
603108.975
W
|
830
PS
|
610463.9625
W
|
840
PS
|
617818.95
W
|
850
PS
|
625173.9375
W
|
860
PS
|
632528.925
W
|
870
PS
|
639883.9125
W
|
880
PS
|
647238.9
W
|
890
PS
|
654593.8875
W
|
900
PS
|
661948.875
W
|
910
PS
|
669303.8625
W
|
920
PS
|
676658.85
W
|
930
PS
|
684013.8375
W
|
940
PS
|
691368.825
W
|
950
PS
|
698723.8125
W
|
960
PS
|
706078.8
W
|
970
PS
|
713433.7875
W
|
980
PS
|
720788.775
W
|
990
PS
|
728143.7625
W
|
1000
PS
|
735498.75
W
|
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