Horsepower hour to Watt-hour Conversion
Convert between Horsepower hour and Watt-hour quickly and accurately.
How to Convert Horsepower hour to Watt-hour
Conversion Formula
Example
Convert 15 hp⋅h to W⋅h:
Unit Information
Learn about the energy units you're converting between
Horsepower hour
hp⋅h
Definition
A horsepower-hour (symbol: hp⋅h) is a unit of energy equal to the amount of work done by a one-horsepower engine running for one hour. It equals approximately 2.68 million joules and is used for measuring large amounts of mechanical energy.
History/Origin
The horsepower-hour was developed in the 19th century alongside the horsepower unit for measuring the energy output of steam engines and later internal combustion engines. It became important in industrial and automotive applications.
Current Use
Horsepower-hours are used in automotive industry for measuring engine energy output, in industrial applications for machinery energy consumption, in agricultural equipment for work calculations, and in mechanical engineering for energy planning.
Multiplier
2684519.537
Offset
0
Watt-hour
W⋅h
Definition
A watt-hour (symbol: Wh) is a unit of energy equal to the amount of energy consumed by a 1-watt device running for one hour. It equals 3,600 joules and is commonly used for small electrical devices and batteries.
History/Origin
The watt-hour was introduced alongside the kilowatt-hour for measuring smaller amounts of electrical energy. It became important with the development of portable electronic devices and battery-powered systems.
Current Use
Watt-hours are used for measuring battery capacity in portable devices, calculating energy consumption of small electrical appliances, monitoring energy usage in electronics, and determining battery life in mobile devices.
Multiplier
3600
Offset
0
Horsepower hour to Watt-hour Conversion Table
| Horsepower hour [hp⋅h] | Watt-hour [W⋅h] |
|---|---|
| 1 hp⋅h | 745.699871 W⋅h |
| 10 hp⋅h | 7456.998714 W⋅h |
| 25 hp⋅h | 18642.496784 W⋅h |
| 50 hp⋅h | 37284.993568 W⋅h |
| 100 hp⋅h | 74569.987136 W⋅h |
| 0 hp⋅h | 0E+0 W⋅h |
| -10 hp⋅h | -7456.998714 W⋅h |
| -40 hp⋅h | -29827.994854 W⋅h |
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