Joule to Btu (IT) Conversion
Convert between Joule and Btu (IT) quickly and accurately.
How to Convert Joule to Btu (IT)
Conversion Formula
Example
Convert 15 J to Btu (IT):
Unit Information
Learn about the energy units you're converting between
Joule
J
Definition
The joule (symbol: J) is the SI base unit of energy, work, and heat. It is defined as the work done when a force of one newton moves an object one meter in the direction of the force. One joule equals one newton-meter or one watt-second.
History/Origin
The joule was named after James Prescott Joule (1818-1889), an English physicist who established the mechanical equivalent of heat. It was officially adopted as the SI unit of energy in 1948, replacing the calorie in scientific contexts.
Current Use
Joules are used universally in physics, engineering, and chemistry for measuring energy, work, and heat. Applications include electrical energy calculations, mechanical work, thermal energy, and energy efficiency measurements in all scientific and industrial fields.
Multiplier
1
Offset
0
Btu (IT)
Btu (IT)
Definition
A British Thermal Unit (BTU) is a traditional unit of heat energy, equal to approximately 1,055 joules. It represents the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit.
History/Origin
The BTU was developed in the 19th century in Britain for measuring heat energy in steam engines and heating systems. It became the standard unit for heating and cooling applications in the United States and other countries.
Current Use
BTUs are used in HVAC systems for measuring heating and cooling capacity, natural gas billing and consumption, appliance energy ratings, industrial heating processes, and thermal energy calculations in engineering.
Multiplier
1055.056
Offset
0
Joule to Btu (IT) Conversion Table
| Joule [J] | Btu (IT) [Btu (IT)] |
|---|---|
| 1 J | 0.000948 Btu (IT) |
| 10 J | 0.009478 Btu (IT) |
| 25 J | 0.023695 Btu (IT) |
| 50 J | 0.047391 Btu (IT) |
| 100 J | 0.094782 Btu (IT) |
| 0 J | 0E+0 Btu (IT) |
| -10 J | -0.009478 Btu (IT) |
| -40 J | -0.037913 Btu (IT) |
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