Foot-pounds to Joules Converter
Convert foot-pounds (ft·lbf) to joules (J)
Result
1.355817948 J
Joules
1 ft·lbf = 1.355817948 J
1 ft·lbf in other units
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How to convert foot-pounds to joules
One foot-pound equals 1.355818 joules, so multiply the number of foot-pounds by 1.355818.
J = ft·lbf × 1.355818
1 ft·lbf = 1.355818 J · 1 J = 0.7375621 ft·lbf
Worked example
To convert 5 foot-pounds to joules: 5 ft·lbf × 1.355818 = 6.77909 J.
About foot-pounds (ft·lbf)
A foot-pound is the work of one pound-force over one foot, used in US engineering.
About joules (J)
The joule is the SI unit of energy: the work done by a force of one newton over one metre.
More conversions
Foot-pounds to other units
Frequently asked questions
How many joules are in one foot-pound?
One foot-pound equals 1.355818 joules.
How many foot-pounds are in one joule?
One joule equals 0.7375621 foot-pounds.
How do I convert foot-pounds to joules?
Use the formula J = ft·lbf × 1.355818. For example, 5 ft·lbf × 1.355818 = 6.77909 J.