Foot-pound to Kilojoule Conversion
Convert between Foot-pound and Kilojoule quickly and accurately.
How to Convert Foot-pound to Kilojoule
Conversion Formula
Example
Convert 15 ft⋅lbf to kJ:
Unit Information
Learn about the energy units you're converting between
Foot-pound
ft⋅lbf
Definition
A foot-pound (symbol: ft⋅lbf) is a unit of energy or work in the imperial system, equal to approximately 1.356 joules. It represents the work done when a force of one pound-force moves an object one foot in the direction of the force.
History/Origin
The foot-pound was developed in the British imperial system for measuring mechanical work and energy. It became widely used in engineering and mechanical applications, particularly in the United States and other countries using imperial units.
Current Use
Foot-pounds are used in mechanical engineering for measuring torque and work, in automotive industry for engine specifications, in ballistics for projectile energy, and in mechanical systems for energy transfer calculations.
Multiplier
1.356
Offset
0
Kilojoule
kJ
Definition
A kilojoule (symbol: kJ) is a unit of energy equal to 1,000 joules. It is commonly used for measuring larger amounts of energy in food, exercise, and industrial applications. One kilojoule equals approximately 0.239 kilocalories.
History/Origin
The kilojoule was introduced as a practical unit for measuring larger energy quantities in the metric system. It became widely used in the late 20th century for food labeling and energy consumption measurements.
Current Use
Kilojoules are extensively used in nutrition labeling worldwide, exercise physiology for measuring energy expenditure, industrial energy consumption monitoring, and scientific research for measuring moderate energy quantities.
Multiplier
1000
Offset
0
Foot-pound to Kilojoule Conversion Table
| Foot-pound [ft⋅lbf] | Kilojoule [kJ] |
|---|---|
| 1 ft⋅lbf | 0.001356 kJ |
| 10 ft⋅lbf | 0.013558 kJ |
| 25 ft⋅lbf | 0.033895 kJ |
| 50 ft⋅lbf | 0.067791 kJ |
| 100 ft⋅lbf | 0.135582 kJ |
| 0 ft⋅lbf | 0E+0 kJ |
| -10 ft⋅lbf | -0.013558 kJ |
| -40 ft⋅lbf | -0.054233 kJ |
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