Foot-Pounds to Joules

1 ft·lbf = 1.355818 J

How to convert foot-pounds to joules

J = ft·lbf × 1.355818

Example: 5 ft·lbf = 6.77909 J

Foot-Pounds to Joules conversion table

Foot-Pounds (ft·lbf)Joules (J)
1 ft·lbf1.355818 J
2 ft·lbf2.711636 J
3 ft·lbf4.067454 J
4 ft·lbf5.423272 J
5 ft·lbf6.77909 J
6 ft·lbf8.134908 J
7 ft·lbf9.490726 J
8 ft·lbf10.84654 J
9 ft·lbf12.20236 J
10 ft·lbf13.55818 J
15 ft·lbf20.33727 J
20 ft·lbf27.11636 J
25 ft·lbf33.89545 J
30 ft·lbf40.67454 J
40 ft·lbf54.23272 J
50 ft·lbf67.7909 J
75 ft·lbf101.6863 J
100 ft·lbf135.5818 J
250 ft·lbf338.9545 J
500 ft·lbf677.909 J
1,000 ft·lbf1,355.818 J

About the units

Foot-Pounds: The foot-pound is the work done by a force of one pound-force over one foot, about 1.356 joules.

Joules: The joule is the SI unit of energy, equal to the work done by a force of one newton over one meter.

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Frequently asked questions

How many joules are in 1 foot-pound?

1 foot-pound equals 1.355818 joules.

How many foot-pounds are in 1 joule?

1 joule equals 0.7375621 foot-pounds.

How do I convert foot-pounds to joules?

Use the formula J = ft·lbf × 1.355818.

What is 10 foot-pounds in joules?

10 foot-pounds equals 13.55818 joules.

Related conversions

Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated