Convert horsepower (550 ft*lbf/s) to attojoule/second

Please provide values below to convert horsepower (550 ft*lbf/s) [hp] to attojoule/second [aJ/s], or Convert attojoule/second to horsepower (550 ft*lbf/s).




How to Convert Horsepower (550 Ft*lbf/s) to Attojoule/second

1 hp = 7.457e+20 aJ/s

Example: convert 15 hp to aJ/s:
15 hp = 15 × 7.457e+20 aJ/s = 1.11855e+22 aJ/s


Horsepower (550 Ft*lbf/s) to Attojoule/second Conversion Table

horsepower (550 ft*lbf/s) attojoule/second

Horsepower (550 Ft*lbf/s)

Horsepower (hp) is a unit of power measurement, defined as 550 foot-pounds of work per second (ft·lbf/s).

History/Origin

The horsepower was developed by James Watt in the late 18th century to compare the power of steam engines with draft horses, and it became a standard unit for measuring engine power.

Current Use

Horsepower is still widely used today to rate the power of engines and motors in automotive, aviation, and industrial applications.


Attojoule/second

An attojoule per second (aJ/s) is a unit of power representing the rate of energy transfer or conversion of one attojoule (10^-18 joules) per second.

History/Origin

The attojoule is a relatively recent SI prefix introduced to measure extremely small quantities of energy, and its use in power units like aJ/s has emerged with advancements in nanotechnology and quantum physics, though it remains a specialized unit with limited historical usage.

Current Use

The aJ/s is used in scientific research involving extremely low power measurements, such as in quantum physics, nanotechnology, and energy transfer studies at the atomic or molecular scale.



Convert horsepower (550 ft*lbf/s) To Other Power Units