Convert Foot-pounds (ft⋅lb) to Joules (J)
Enter a value below to convert Foot-pounds (ft⋅lb) to Joules (J).
Conversion:
1 Foot-pounds (ft⋅lb) = 1.35582 Joules (J)
How to Convert Foot-pounds (ft⋅lb) to Joules (J)
1 ftlb = 1.35582 j
1 j = 0.73756103318 ftlb
Example: convert 15 Foot-pounds (ft⋅lb) to Joules (J):
25 ftlb = 33.8955 j
Foot-pounds (ft⋅lb) to Joules (J) Conversion Table
| Foot-pounds (ft⋅lb) | Joules (J) |
|---|---|
| 0.01 ftlb | 0.0135582 j |
| 0.1 ftlb | 0.135582 j |
| 1 ftlb | 1.35582 j |
| 2 ftlb | 2.71164 j |
| 3 ftlb | 4.06746 j |
| 5 ftlb | 6.7791 j |
| 10 ftlb | 13.5582 j |
| 20 ftlb | 27.1164 j |
| 50 ftlb | 67.791 j |
| 100 ftlb | 135.582 j |
| 1000 ftlb | 1355.82 j |
Foot-pounds (ft⋅lb)
Definition
A foot-pound (ft⋅lb) is an imperial unit of energy equal to the work done when a force of one pound-force moves an object one foot. It equals approximately 1.35582 joules.
History
The foot-pound has been used in English-speaking countries since the early days of mechanical engineering. It was the standard unit for torque and mechanical work before the joule gained prominence.
Current use
Foot-pounds are widely used in the US for measuring torque in automotive and mechanical applications, firearm muzzle energy, and mechanical work in engineering specifications.
Joules (J)
Definition
A joule (J) is the SI unit of energy, defined as the work done when a force of one newton moves an object one meter in the direction of the force. It equals 1 kg⋅m²/s².
History
The joule is named after English physicist James Prescott Joule, who demonstrated the relationship between mechanical work and heat in the 1840s. It was adopted as the SI unit of energy in 1889 by the International Electrical Congress.
Current use
Joules are used universally in physics, engineering, and chemistry to quantify energy, work, and heat. They are the standard unit on food labels in many countries and in scientific research worldwide.