Convert pound-force inch to horsepower (metric) hour
Please provide values below to convert pound-force inch [lbf*in] to horsepower (metric) hour [hp*h], or Convert horsepower (metric) hour to pound-force inch.
How to Convert Pound-Force Inch to Horsepower (Metric) Hour
1 lbf*in = 4.26712825820574e-08 hp*h
Example: convert 15 lbf*in to hp*h:
15 lbf*in = 15 × 4.26712825820574e-08 hp*h = 6.40069238730861e-07 hp*h
Pound-Force Inch to Horsepower (Metric) Hour Conversion Table
| pound-force inch | horsepower (metric) hour |
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Pound-Force Inch
Pound-force inch (lbf·in) is a unit of torque representing the torque resulting from a one-pound-force applied at a perpendicular distance of one inch from the pivot point.
History/Origin
The pound-force inch has been used historically in engineering and mechanical contexts to quantify torque, especially in the United States, based on the imperial system of units. It originated from the need to measure rotational force in machinery and automotive applications.
Current Use
Today, pound-force inch is still used in engineering, automotive, and mechanical fields to specify torque values, particularly in the United States. It is often converted to SI units like newton-meters for international standardization.
Horsepower (Metric) Hour
A unit of energy representing the amount of work done by one horsepower over one hour, equivalent to 745.7 joules.
History/Origin
The horsepower hour was historically used to quantify energy in mechanical and engineering contexts, especially in the era of steam and early engines, but has largely been replaced by standard energy units like joules and kilowatt-hours.
Current Use
It is rarely used in modern practice, but may still appear in legacy systems or specific industrial applications to measure energy output or consumption related to horsepower-rated equipment.