foot-pounds to joules
Convert foot-pound to joule — instant, free, with the formula shown.
1 ft·lb=1.355818 J
How to convert foot-pound to joule
To convert foot-pound to joule, multiply by 1.35581795:
J = ft·lb × 1.35581795
For example, 10 ft·lb × 1.355818 = 13.558179 J.
ft·lb to J conversion table
| foot-pounds (ft·lb) | joules (J) |
|---|---|
| 1 ft·lb | 1.355818 J |
| 2 ft·lb | 2.711636 J |
| 5 ft·lb | 6.77909 J |
| 10 ft·lb | 13.558179 J |
| 25 ft·lb | 33.895449 J |
| 50 ft·lb | 67.790897 J |
| 100 ft·lb | 135.581795 J |
| 250 ft·lb | 338.954487 J |
| 500 ft·lb | 677.908974 J |
| 1000 ft·lb | 1355.817948 J |
Other foot-pound conversions
Convert to joule from another unit
ft·lb to J — frequently asked
How many joules are in 1 foot-pound?
1 foot-pound = 1.355818 joules (ft·lb × 1.355818 = J).
What is the formula to convert foot-pound to joule?
Multiply your foot-pound value by 1.35581795 to get joule.
How do I convert 10 foot-pounds to joules?
10 ft·lb = 13.558179 J. For 100 ft·lb the answer is 135.581795 J. Use the calculator on this page for any other value.
When to convert foot-pound to joule
1Electricity bills (kWh)
2Nutrition labels (kcal / food cal)
3HVAC and heating (BTU, therms)
4Physics and chemistry (J, eV)
Energy conversion — common questions
Is a food calorie the same as a calorie?
No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.
How many joules in 1 kWh?
1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.
What is a BTU?
British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.
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