Energy & Work
Foot-pound to Joule Converter
Convert Foot-pound to Joule with the exact formula, a worked example and a quick conversion table.
Smart input
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Quick values:
Conversion formula
The exact formula applied:
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Conversion formula
J = ft·lb × 1.35581794833
ft·lb = J ÷ 1.35581794833
Worked example
50 ft·lb = 67.7909 J
J = ft·lb × 1.35581794833
Energy is measured in joules; kilowatt-hours for electricity, kilocalories for food/HVAC and BTU for heating/cooling.
Quick conversion table
| Foot-pound (ft·lb) | Joule (J) |
|---|---|
| 1 | 1.35582 |
| 2 | 2.71164 |
| 5 | 6.77909 |
| 10 | 13.55818 |
| 25 | 33.89545 |
| 50 | 67.7909 |
| 100 | 135.58179 |
| 250 | 338.95449 |
| 500 | 677.90897 |
| 1,000 | 1,355.82 |
Reverse conversion table
| Joule (J) | Foot-pound (ft·lb) |
|---|---|
| 1 | 0.7375621 |
| 2 | 1.47512 |
| 5 | 3.68781 |
| 10 | 7.37562 |
| 25 | 18.43905 |
| 50 | 36.87811 |
| 100 | 73.75621 |
| 250 | 184.39054 |
| 500 | 368.78107 |
| 1,000 | 737.56215 |
About the two units
ft·lbFoot-pound
Work of one pound-force over one foot.
1 ft·lb = 1.35581794833 J
Non-SI Unit Energy & Work
JJoule
The SI base unit of energy.
1 J = 1 J
SI Derived Unit Energy & Work
Convert to every unit in this category
Instant values for all units based on your input
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