Formula
J to ft·lb conversion formula
Use this relationship for a direct conversion:
Worked example
2 J = 1.4751242986 ft·lb.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Energy conversion
1 joule (J) equals 0.737562149277 foot-pound (ft·lb). Enter any value below to convert from J to ft·lb.
Enter a value and choose units. Results update instantly.
1 J = 0.7375621493 ft·lb
| Unit | Value |
|---|---|
| Joule J | 1 |
| Kilojoule kJ | 0.001 |
| Thermochemical calorie cal | 0.2390057361 |
| Kilocalorie kcal | 0.0002390057 |
| Watt-hour Wh | 0.0002777778 |
| Kilowatt-hour kWh | 0.0000002778 |
| BTU (International Table) BTUₕᵀ | 0.0009478171 |
| Foot-pound ft·lb | 0.7375621493 |
| Electronvolt eV | 6.2415090745e18 |
Formula
Use this relationship for a direct conversion:
2 J = 1.4751242986 ft·lb.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| Joule (J) | Foot-pound (ft·lb) |
|---|---|
| 0.01 | 0.0073756215 |
| 0.1 | 0.0737562149 |
| 1 | 0.7375621493 |
| 2 | 1.4751242986 |
| 5 | 3.6878107464 |
| 10 | 7.3756214928 |
| 25 | 18.4390537319 |
| 50 | 36.8781074639 |
| 100 | 73.7562149277 |
| 1,000 | 737.5621492773 |
From unit
The SI unit of energy, equal to one newton meter.
Symbol: J
To unit
Work from one pound-force through one foot.
Symbol: ft·lb
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula ft·lb = J x 0.737562149277. 1 joule (J) equals 0.737562149277 foot-pound (ft·lb).
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.