How many millidekatherm in 1 horsepower hour? The answer is 2.5444334276506. We assume you are converting between millidekatherm and horsepower hour. You can view more details on each measurement unit: millidekatherm or horsepower hour The SI derived unit for energy is the joule. 1 joule is equal to 9.4781707774915E-7 millidekatherm, 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 millidekatherms and horsepower hours. Type in your own numbers in the form to convert the units!
1 millidekatherm to horsepower hour = 0.39301 horsepower hour
5 millidekatherm to horsepower hour = 1.96507 horsepower hour
10 millidekatherm to horsepower hour = 3.93015 horsepower hour
20 millidekatherm to horsepower hour = 7.8603 horsepower hour
30 millidekatherm to horsepower hour = 11.79044 horsepower hour
40 millidekatherm to horsepower hour = 15.72059 horsepower hour
50 millidekatherm to horsepower hour = 19.65074 horsepower hour
75 millidekatherm to horsepower hour = 29.47611 horsepower hour
100 millidekatherm to horsepower hour = 39.30148 horsepower hour
You can do the reverse unit conversion from horsepower hour to millidekatherm, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millidekatherm = 10-3 dekatherms.
The definition of a dekatherm is as follows:
10 therms are known as a decatherm (sometimes, dekatherm commonly abbreviated Dth), which is 1000000 Btu.
Note in this case, we define this based on therm [Europe] not therm [U.S.] since the exact number is slightly different for each case.
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