| Did you mean to convert | attowatt | to | horsepower [electric] horsepower [international] horsepower [metric] horsepower [water] |
How many attowatt in 1 horsepower [metric]? The answer is 7.3549875E+20. We assume you are converting between attowatt and horsepower [metric]. You can view more details on each measurement unit: attowatt or horsepower [metric] The SI derived unit for power is the watt. 1 watt is equal to 1.0E+18 attowatt, or 0.0013596216173039 horsepower [metric]. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between attowatts and horsepower. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from horsepower [metric] to attowatt, or enter any two units below:
The SI prefix "atto" represents a factor of 10-18, or in exponential notation, 1E-18.
So 1 attowatt = 10-18 watts.
The definition of a watt is as follows:
The watt (symbol: W) is the SI derived unit for power. It is equivalent to one joule per second (1 J/s), or in electrical units, one volt ampere (1 V·A).
Metric horsepower began in Germany in the 19th century and became popular across Europe and Asia. The various units used to indicate this definition ("PS", "CV", "pk", and "ch") all translate to "horse power" in English. Metric horsepower, as a rule, is defined as 0.73549875 kW, or roughly 98.6% of mechanical horsepower.
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