Horsepower hours to Nanojoules calculator

Horsepower hours to Nanojoules Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Horsepower hours to Nanojoules conversion table based on your needs.

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• Horsepower hour (2,684,519 J)

  A horsepower-hour (hph or hp⋅h) is an outdated unit of energy, not used in the SI system of units. The unit represents an amount of work a horse is supposed capable of delivering during an hour (1 (one) horsepower integrated over a time interval of an hour). The horsepower-hour is still used in the railroad industry when sharing motive power (locomotives.) For example, if Railroad A borrows a 2,500 horsepower locomotive from Railroad B and operates it for twelve hours, Railroad A owes a debt of (2,500 hp × 12 h) = 30,000 hp⋅h. Railroad A may repay the debt by loaning Railroad B a 3,000 horsepower locomotive for ten hours.

• Nanojoule (0.000000001 J)

  The nanojoule (nJ) is equal to one billionth (10⁻⁹) of one joule. 160 nanojoules is about the kinetic energy of a flying mosquito.