How many horsepower [electric] in 1 horsepower [international]? The answer is 0.99959768308615. We assume you are converting between horsepower [electric] and horsepower [international]. You can view more details on each measurement unit: horsepower [electric] or horsepower [international] The SI derived unit for power is the watt. 1 watt is equal to 0.0013404825737265 horsepower [electric], or 0.001341022089595 horsepower [international]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between horsepower and horsepower. Type in your own numbers in the form to convert the units!
1 horsepower [electric] to horsepower [international] = 1.0004 horsepower [international]
5 horsepower [electric] to horsepower [international] = 5.00201 horsepower [international]
10 horsepower [electric] to horsepower [international] = 10.00402 horsepower [international]
15 horsepower [electric] to horsepower [international] = 15.00604 horsepower [international]
20 horsepower [electric] to horsepower [international] = 20.00805 horsepower [international]
25 horsepower [electric] to horsepower [international] = 25.01006 horsepower [international]
30 horsepower [electric] to horsepower [international] = 30.01207 horsepower [international]
40 horsepower [electric] to horsepower [international] = 40.0161 horsepower [international]
50 horsepower [electric] to horsepower [international] = 50.02012 horsepower [international]
You can do the reverse unit conversion from horsepower [international] to horsepower [electric], or enter any two units below:
The electrical horsepower is used by the electrical industry for electrical machines and is defined to be exactly 746 W (at 100% efficiency).
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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