BTU to Joule Converter

Convert btu to joule easily (Imperial to SI)

British Thermal Unit to Joule Conversion
British Thermal Unit (BTU) 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 BTU = 1055.06 J
1 BTU = 1055.06 J
Exact Value
1055.06
Rounded
1055.06
Imperial to SI Conversion
Imperial ↔ SI
Unit Comparison
From Unit
British Thermal Unit (BTU)
System: Imperial
To Unit
Joule (J)
System: SI
Quick Reference
1 BTU = In Other Units
1,055.060000 J
1.055060 kJ
252.165392 cal
0.252165 kcal
0.000293 kWh
0.293072 Wh
6,585,166,564,100,571,922,432.000000 eV
0.001055 MJ
0.000010 thm
778.171144 ft·lb

Related Energy Conversions

100 kWh
360000000 J
E S
5 thm
527530000 J
I S
4184 eV
0 J
S S
5 BTU
3.2925832820503E+22 eV
I S
5 BTU
1260.83 cal
I C
100 cal
418.4 J
C S
5 BTU
1260.83 cal
I C
100 kJ
100000 J
S S
1 BTU
0.25 kcal
I C
1000 Wh
3600000 J
E S

BTU to Joule Converter | Energy Converter

Convert 1 BTU to joules. 1 BTU = 1055.06 joules. Easy energy conversion calculator for btu to joule. Accurate results for physics, engineering, and nutrition.

British Thermal Unit to Joule Conversion

Convert british thermal unit 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 BTU = 1055.06 J

To convert british thermal unit to joule, multiply the british thermal unit value by 1055.06.

Common British Thermal Unit to Joule Conversions

British Thermal Unit (BTU) = Joule (J)
1 1055.06
10 10550.6
100 105506
500 527530
1000 1055060
4184 4414371.04
3600000 3798216000

Understanding British Thermal Unit and Joule

British Thermal Unit (BTU)

The british thermal unit is a unit of energy in the Imperial system.

• British Thermal Unit

• 1 BTU = energy to raise 1lb water by 1°F

• Commonly used in HVAC industry

• Air conditioners rated in BTUs/hour

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
  • • Window AC unit (5000 BTU/hr) = 1.46 kW = 5.28 million joules/hr
  • • Gas furnace (100,000 BTU/hr) = 29.3 kW
  • • Human body heat output: 400 BTU/hr = 117 watts
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 BTU = 1055.06 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