Convert inch-pound to horsepower hour
Please provide values below to convert inch-pound [in*lbf] to horsepower hour [hp*h], or Convert horsepower hour to inch-pound.
How to Convert Inch-Pound to Horsepower Hour
1 in*lbf = 4.20875424136417e-08 hp*h
Example: convert 15 in*lbf to hp*h:
15 in*lbf = 15 × 4.20875424136417e-08 hp*h = 6.31313136204626e-07 hp*h
Inch-Pound to Horsepower Hour Conversion Table
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Inch-Pound
The inch-pound (in·lbf) is a unit of torque or energy, representing the force of one pound applied at the end of a one-inch lever arm.
History/Origin
The inch-pound has been used primarily in the United States and other countries that employ imperial units, originating from the traditional use of inches and pounds in mechanical and engineering contexts, with its formal recognition dating back to the 19th century.
Current Use
It is commonly used in engineering, automotive, and mechanical applications to measure torque and energy, especially in contexts where imperial units are standard.
Horsepower Hour
A horsepower hour (hp*h) is a unit of energy representing the amount of energy equivalent to one horsepower of power sustained over one hour of time.
History/Origin
The horsepower hour originated from the traditional unit of horsepower used to quantify engine power, combined with the hour to measure energy consumption or production over time. It has been used primarily in engineering and energy industries to express energy usage or capacity.
Current Use
Today, the horsepower hour is rarely used in practical applications, having been largely replaced by the joule and other SI units. However, it may still be referenced in historical data, legacy systems, or specific industries dealing with older measurement standards within the energy and mechanical sectors.