Watt-hour to Horsepower hour Conversion
Convert between Watt-hour and Horsepower hour quickly and accurately.
How to Convert Watt-hour to Horsepower hour
Conversion Formula
Example
Convert 15 W⋅h to hp⋅h:
Unit Information
Learn about the energy units you're converting between
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
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 to Horsepower hour Conversion Table
| Watt-hour [W⋅h] | Horsepower hour [hp⋅h] |
|---|---|
| 1 W⋅h | 0.001341 hp⋅h |
| 10 W⋅h | 0.01341 hp⋅h |
| 25 W⋅h | 0.033526 hp⋅h |
| 50 W⋅h | 0.067051 hp⋅h |
| 100 W⋅h | 0.134102 hp⋅h |
| 0 W⋅h | 0E+0 hp⋅h |
| -10 W⋅h | -0.01341 hp⋅h |
| -40 W⋅h | -0.053641 hp⋅h |
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