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
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1 ft·lbf = 0.00135581794833 kJ
Show this value in all 39 energy & work units
- Petajoules PJ 1.35581794833e-15
- Terajoules TJ 1.35581794833e-12
- Gigajoules GJ 1.35581794833e-9
- Megajoules MJ 0.000 001 355 817 948 33
- Kilojoules kJ 0.001 355 817 948 33
- Joules J 1.355 817 948 33
- Millijoules mJ 1355.817 948 33
- Microjoules µJ 1 355 817.948 33
- Nanojoules nJ 1 355 817 948.33
- Watt-hours Wh 0.000 376 616 096 759
- Kilowatt-hours kWh 0.000 000 376 616 096 759
- Megawatt-hours MWh 3.76616096759e-10
- Gigawatt-hours GWh 3.76616096759e-13
- Terawatt-hours TWh 3.76616096759e-16
- Calorie (thermochemical)s cal 0.324 048 266 81
- Kilocalories kcal 0.000 324 048 266 81
- Calorie (IT)s cal (IT) 0.323 831 553 533
- Kilocalorie (IT)s kcal (IT) 0.000 323 831 553 533
- British thermal units BTU 0.001 285 067 463 46
- BTU (thermochemical)s BTU (th) 0.001 285 927 773 82
- Million BTUs MMBTU 1.28506746346e-9
- Therm (US)s thm 1.28537429544e-8
- Therm (EC)s thm (EC) 1.28506728395e-8
- Electronvolts eV 8.46235002783e+18
- Kiloelectronvolts keV 8 462 350 027 830 000
- Megaelectronvolts MeV 8 462 350 027 830
- Gigaelectronvolts GeV 8 462 350 027.83
- Teraelectronvolts TeV 8 462 350.027 83
- Ergs erg 13 558 179.4833
- Foot-pounds ft·lbf 1
- Inch-pounds in·lbf 12
- Foot-poundals ft·pdl 32.174 048 556 4
- Horsepower-hours hp·h 0.000 000 505 050 505 051
- Tonne of TNTs t TNT 3.2404826681e-10
- Kiloton of TNTs kt TNT 3.2404826681e-13
- Megaton of TNTs Mt TNT 3.2404826681e-16
- Hartrees Eₕ 3.10985627536e+17
- Rydbergs Ry 6.21971255072e+17
- Quads quad 1.28506746346e-18
Every row is Foot-pound (ft·lbf) converted through the joule, in exact rational arithmetic.
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.