How many watthour in 1 horsepower hour? The answer is 745.69986111111. We assume you are converting between watthour and horsepower hour. You can view more details on each measurement unit: watthour or horsepower hour The SI derived unit for energy is the joule. 1 joule is equal to 0.00027777777777778 watthour, or 3.7250614122937E-7 horsepower hour. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between watthour and horsepower hours. Type in your own numbers in the form to convert the units!
1 watthour to horsepower hour = 0.00134 horsepower hour
10 watthour to horsepower hour = 0.01341 horsepower hour
50 watthour to horsepower hour = 0.06705 horsepower hour
100 watthour to horsepower hour = 0.1341 horsepower hour
200 watthour to horsepower hour = 0.2682 horsepower hour
500 watthour to horsepower hour = 0.67051 horsepower hour
1000 watthour to horsepower hour = 1.34102 horsepower hour
You can do the reverse unit conversion from horsepower hour to watthour, or enter any two units below:
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