Convert foot-pounds to kilojoules
1 ft·lbf = 0.00135581794833 kJ — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001 355 817 948 33kJ
Exact decimal: 0.0013558179483314004
As a fraction: 3389544870828501/2500000000000000000
1 ft·lbf = 0.00135581794833 kJ
How to convert foot-pounds to kilojoules
Multiply the number of foot-pounds by 0.00135581794833 to get kilojoules.
The exact factor is 0.0013558179483314004 — as a fraction, 3389544870828501/2500000000000000000.
Foot-pound to Kilojoule conversion table
| Foot-pounds (ft·lbf) | Kilojoules (kJ) |
|---|---|
| 1 ft·lbf | 0.001 355 817 9 |
| 2 ft·lbf | 0.002 711 635 9 |
| 3 ft·lbf | 0.004 067 453 8 |
| 5 ft·lbf | 0.006 779 089 7 |
| 10 ft·lbf | 0.013 558 179 |
| 20 ft·lbf | 0.027 116 359 |
| 25 ft·lbf | 0.033 895 449 |
| 50 ft·lbf | 0.067 790 897 |
| 100 ft·lbf | 0.135 581 79 |
| 250 ft·lbf | 0.338 954 49 |
| 500 ft·lbf | 0.677 908 97 |
| 1000 ft·lbf | 1.355 817 9 |
Kilojoule to Foot-pound conversion table
| Kilojoules (kJ) | Foot-pounds (ft·lbf) |
|---|---|
| 1 kJ | 737.562 15 |
| 2 kJ | 1475.1243 |
| 3 kJ | 2212.6864 |
| 5 kJ | 3687.8107 |
| 10 kJ | 7375.6215 |
| 20 kJ | 14 751.243 |
| 25 kJ | 18 439.054 |
| 50 kJ | 36 878.107 |
| 100 kJ | 73 756.215 |
| 250 kJ | 184 390.54 |
| 500 kJ | 368 781.07 |
| 1000 kJ | 737 562.15 |
Frequently asked
How many kilojoules are in a foot-pound?
One foot-pound equals 0.001355817948 kilojoules (ft·lbf → kJ). That figure is exact, not rounded.
How do you convert foot-pounds to kilojoules?
Multiply the number of foot-pounds by 0.00135581794833 to get kilojoules.
What is 1 kJ in foot-pounds?
One kilojoule is 737.5621493 foot-pounds.
What is 10 ft·lbf in kJ?
10 ft·lbf = 0.013 558 179 kJ.