Convert Foot-pound to Kilojoule
Enter the number of foot-pounds that you want to convert to kilojoules.
How to Convert Foot-pounds to Kilojoules
The foot-pound and kilojoule are both units of energy. 1 kilojoule equals 737.56214929 foot-pounds. This means to convert foot-pounds to kilojoules, you divide by 737.56214929.
Formula
Step-by-Step Example
Convert 5 ft·lb to kilojoules:
We need to convert foot-pounds to kilojoules
Since 1 kJ = 737.56214929 ft·lb, divide by 737.56214929
5 ÷ 737.56214929 = 0.0067790897
5 ft·lb = 0.0067790897 kJ
Foot-pound to Kilojoule Conversion Table
Quick reference table for common foot-pound to kilojoule conversions. Click any value for detailed calculation.
| Foot-pounds (ft·lb) | Kilojoules (kJ) |
|---|---|
| 0.1 ft·lb | 0.0001355818 kJ |
| 0.5 ft·lb | 0.000677909 kJ |
| 1 ft·lb | 0.0013558179 kJ |
| 2 ft·lb | 0.0027116359 kJ |
| 5 ft·lb | 0.0067790897 kJ |
| 10 ft·lb | 0.0135581795 kJ |
| 25 ft·lb | 0.0338954487 kJ |
| 50 ft·lb | 0.0677908974 kJ |
| 100 ft·lb | 0.1355817948 kJ |
About These Units
Foot-pound (ft·lb)
A foot-pound (ft·lb or ft-lbf) is the energy to raise 1 pound by 1 foot against gravity, equal to 1.356 joules. Foot-pounds measure torque, bullet energy (muzzle energy: 300-4,000 ft·lb), and mechanical work in US engineering. One ft·lb equals 0.324 calories.
Kilojoule (kJ)
A kilojoule (kJ) equals 1,000 joules or approximately 239 calories. Kilojoules measure food energy on nutrition labels in Australia, Europe, and many countries. An average adult needs 8,400-10,000 kJ daily. One kJ equals approximately 0.239 kcal.
Frequently Asked Questions
How do I convert foot-pounds to kilojoules?
To convert foot-pounds to kilojoules, divide the value by 737.56214929. For example, 10 ft·lb = 0.0135581795 kJ.
How many kilojoules are in 1 foot-pound?
1 foot-pound equals 0.0013558179 kilojoules.
What is the formula for foot-pounds to kilojoules?
The formula is: kJ = ft·lb ÷ 737.56214929.