Foot pound → Joule (ftlb → J)

ftlb to J direct conversion page with calculator, reverse conversion and comparison table.

1 ftlb = 1.35582 J
1 Foot pound (ftlb) = 1.35582 Joule (J).


swap converter

If you want to reverse convert, use Joule → Foot pound. 1 J = 0.7375610331755 ftlb. You can also explore the full Energy converter page for more cross conversions.

Conversion formula

Foot pound to Joule formula: value in J = value in ftlb × 1.35582.

Joule to Foot pound formula: value in ftlb = value in J × 0.7375610331755.

How to convert Foot pound to Joule

To convert Foot pound to Joule, multiply the value in ftlb by 1.35582. This gives the result in J.

For example, 1 ftlb = 1.35582 J and 10 ftlb = 13.5582 J.

What is Foot pound?

Foot pound (ft·lbf): The work of one pound-force acting through one foot in its direction. 1 ft·lbf ≈ 1.35582 J.

What is Joule?

Joule (J): The SI energy unit connects mechanical work with electrical energy. 1 J = 1 N·m = 1 W·s.

FAQ

How many joule are in 1 foot pound?

There are 1.35582 J in 1 ftlb.

Why can conversion results differ slightly?

Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.

How do I convert foot pound to joule?

Multiply the value in ftlb by 1.35582 to get the value in J.

Foot pound → other Energy units

Foot pound → Joule Table

The table below shows common values from Foot pound to Joule and the reverse direction for quick reference.

ftlbJRounded
1 ftlb1.35582 J1.3558
2 ftlb2.71164 J2.7116
3 ftlb4.06746 J4.0675
4 ftlb5.42328 J5.4233
5 ftlb6.7791 J6.7791
10 ftlb13.5582 J13.5582
12 ftlb16.26984 J16.2698
15 ftlb20.3373 J20.3373
20 ftlb27.1164 J27.1164
25 ftlb33.8955 J33.8955
30 ftlb40.6746 J40.6746
40 ftlb54.2328 J54.2328
50 ftlb67.791 J67.7910
75 ftlb101.6865 J101.6865
100 ftlb135.582 J135.5820
200 ftlb271.164 J271.1640
250 ftlb338.955 J338.9550
500 ftlb677.91 J677.9100
750 ftlb1016.865 J1016.8650
1000 ftlb1355.82 J1355.8200
2500 ftlb3389.55 J3389.5500
5000 ftlb6779.1 J6779.1000
10000 ftlb13558.2 J13558.2000

Joule → Foot pound Table

JftlbRounded
1 J0.7375610331755 ftlb0.7376
2 J1.475122066351 ftlb1.4751
3 J2.2126830995265 ftlb2.2127
4 J2.950244132702 ftlb2.9502
5 J3.6878051658775 ftlb3.6878
10 J7.375610331755 ftlb7.3756
12 J8.8507323981059 ftlb8.8507
15 J11.063415497632 ftlb11.0634
20 J14.75122066351 ftlb14.7512
25 J18.439025829387 ftlb18.4390
30 J22.126830995265 ftlb22.1268
40 J29.50244132702 ftlb29.5024
50 J36.878051658775 ftlb36.8781
75 J55.317077488162 ftlb55.3171
100 J73.75610331755 ftlb73.7561
200 J147.5122066351 ftlb147.5122
250 J184.39025829387 ftlb184.3903
500 J368.78051658775 ftlb368.7805
750 J553.17077488162 ftlb553.1708
1000 J737.5610331755 ftlb737.5610
2500 J1843.9025829387 ftlb1843.9026
5000 J3687.8051658775 ftlb3687.8052
10000 J7375.610331755 ftlb7375.6103

Joule → Foot pound

The reverse value is 1 J = 0.7375610331755 ftlb.