Joules to Foot-Pounds
Convert J to ft-lb quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
1 J equals approximately 0.737562 ft-lb.
How to use the Joules to Foot-Pounds
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
1 J equals approximately 0.737562 ft-lb.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common J to ft-lb conversions
| J | ft-lb |
|---|---|
| 1 J | 0.737562 ft-lb |
| 2 J | 1.475124 ft-lb |
| 5 J | 3.687811 ft-lb |
| 10 J | 7.375621 ft-lb |
| 20 J | 14.751243 ft-lb |
| 50 J | 36.878107 ft-lb |
Example
For example, entering 1 J gives approximately 0.737562 ft-lb using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.