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How many watts in 1 horsepower [international]? The answer is 745.69987158227. We assume you are converting between watt and horsepower [international]. You can view more details on each measurement unit: watts or horsepower [international] The SI derived unit for power is the watt. 1 watt is equal to 0.001341022089595 horsepower [international]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between watts and horsepower. Type in your own numbers in the form to convert the units!
1 watts to horsepower [international] = 0.00134 horsepower [international]
10 watts to horsepower [international] = 0.01341 horsepower [international]
50 watts to horsepower [international] = 0.06705 horsepower [international]
100 watts to horsepower [international] = 0.1341 horsepower [international]
200 watts to horsepower [international] = 0.2682 horsepower [international]
500 watts to horsepower [international] = 0.67051 horsepower [international]
1000 watts to horsepower [international] = 1.34102 horsepower [international]
You can do the reverse unit conversion from horsepower [international] to watts, or enter any two units below:
The watt (symbol: W) is the SI derived unit for power. It is equivalent to one joule per second (1 J/s), or in electrical units, one volt ampere (1 V·A).
The term horsepower was invented by the engineer James Watt in 1782. Mechanical horsepower is defined in this way:
1 hp = 33,000 ft·pound-force·min−1 = exactly 745.69987158227022 W
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