Convert British Thermal Units (BTU) to Kilojoules (kJ)
Enter a value below to convert British Thermal Units (BTU) to Kilojoules (kJ).
Conversion:
1 British Thermal Units (BTU) = 1.05506 Kilojoules (kJ)
How to Convert British Thermal Units (BTU) to Kilojoules (kJ)
1 btu = 1.05506 kj
1 kj = 0.9478133945 btu
Example: convert 15 British Thermal Units (BTU) to Kilojoules (kJ):
25 btu = 26.3765 kj
British Thermal Units (BTU) to Kilojoules (kJ) Conversion Table
| British Thermal Units (BTU) | Kilojoules (kJ) |
|---|---|
| 0.01 btu | 0.0105506 kj |
| 0.1 btu | 0.105506 kj |
| 1 btu | 1.05506 kj |
| 2 btu | 2.11012 kj |
| 3 btu | 3.16518 kj |
| 5 btu | 5.2753 kj |
| 10 btu | 10.5506 kj |
| 20 btu | 21.1012 kj |
| 50 btu | 52.753 kj |
| 100 btu | 105.506 kj |
| 1000 btu | 1055.06 kj |
British Thermal Units (BTU)
Definition
A British Thermal Unit (BTU) is an imperial unit of energy defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It equals approximately 1,055.06 joules.
History
The BTU originated in the British imperial measurement system in the 19th century. Despite the global shift toward metric units, it remains entrenched in US, UK, and Canadian HVAC and energy industries.
Current use
BTUs are the standard unit for rating heating and cooling equipment (furnaces, air conditioners), measuring natural gas energy content, and comparing fuel efficiencies in North America.
Kilojoules (kJ)
Definition
A kilojoule (kJ) is a unit of energy equal to 1,000 joules. It is commonly used for expressing larger quantities of energy in nutritional contexts and engineering.
History
The kilojoule naturally derives from the joule with the SI kilo- prefix. It gained widespread use in the 20th century, particularly in countries adopting the metric system for food energy labeling.
Current use
Kilojoules are the primary energy unit on food labels in Australia, New Zealand, and many European countries. They are also used in heating, ventilation, and chemical energy calculations.