Foot-pound to Joule Converter

Convert foot-pound to joule easily (Imperial to SI)

Foot-pound to Joule Conversion
Foot-pound (ft·lb) Imperial
Joule (J) SI
Common Energy Values
Energy Equivalents
1 calorie = 4.184 joules
1 BTU = 1055.06 joules
1 kWh = 3.6 million joules
1 eV = 1.602e-19 joules
Conversion Result
1 ft·lb = 1.35582 J
1 ft·lb = 1.35582 J
Exact Value
1.35582
Rounded
1.36
Imperial to SI Conversion
Imperial ↔ SI
Unit Comparison
From Unit
Foot-pound (ft·lb)
System: Imperial
To Unit
Joule (J)
System: SI
Quick Reference
1 ft·lb = In Other Units
1.355820 J
0.001356 kJ
0.324049 cal
0.000324 kcal
0.001285 BTU
0.000000 kWh
0.000377 Wh
8,462,362,833,335,392,256.000000 eV
0.000001 MJ
0.000000 thm

Related Energy Conversions

5 thm
527530000 J
I S
4184 thm
441437104000 J
I S
1 eV
0 J
S S
5 thm
527530000 J
I S
1000 ft·lb
0.38 Wh
I E
1 Wh
3600 J
E S
5 ft·lb
0 kWh
I E
5 Wh
18000 J
E S
50 kJ
50000 J
S S
1000 eV
0 J
S S

Foot-pound to Joule Converter | Energy Converter

Convert 1 foot-pound to joules. 1 foot-pound = 1.3558 joules. Easy energy conversion calculator for foot-pound to joule. Accurate results for physics, engineering, and nutrition.

Foot-pound to Joule Conversion

Convert foot-pound to joule easily with our accurate energy conversion calculator. Whether you're working on physics problems, nutritional calculations, electrical engineering, or thermodynamics, our tool provides instant and precise results.

Conversion Formula

1 ft·lb = 1.35582 J

To convert foot-pound to joule, multiply the foot-pound value by 1.35582.

Common Foot-pound to Joule Conversions

Foot-pound (ft·lb) = Joule (J)
1 1.3558
10 13.5582
100 135.582
500 677.91
1000 1355.82
4184 5672.7509
3600000 4880952

Understanding Foot-pound and Joule

Foot-pound (ft·lb)

The foot-pound is a unit of energy in the Imperial system.

Joule (J)

The joule is a unit of energy in the SI system.

• Fundamental unit in physics

• Used in all scientific publications

• Standard for energy equations

• Basis for all other energy units

Imperial to SI Conversion

You are converting from a imperial unit to a si unit. This conversion is commonly needed when:

  • Comparing nutritional information with scientific data
  • Calculating electricity costs for different energy sources
  • Converting physics laboratory measurements
  • Working with international engineering specifications
  • Translating between different measurement traditions

Practical Examples

Everyday Examples
Scientific Examples

Conversion Tips

Quick Mental Calculation

For approximate conversions, remember these quick multipliers:

For Precise Calculations

Always use our converter tool or the exact conversion factor:

1 ft·lb = 1.35582 J

Remember These Key Equivalents
  • 1 food Calorie = 1 kilocalorie = 4184 joules
  • 1 kWh = 3.6 million joules = 3.6 MJ
  • 1 BTU = 1055.06 joules ≈ 1.055 kJ
  • 1 eV = 1.602 × 10⁻¹⁹ joules
  • 1 therm = 100,000 BTU = 105.5 million joules