British Thermal Units to Kilojoules
Convert British thermal units (BTU) to kilojoules (kJ). Type in either box; the other updates as you go.
How to convert British thermal units to kilojoules
To convert British thermal units to kilojoules, multiply the number of British thermal units by 1.055055853.
Example
Convert 5 British thermal units to kilojoules:
British Thermal Unit to kilojoule conversion chart
| British Thermal Units (BTU) | Kilojoules (kJ) |
|---|---|
| 1 BTU | 1.055056 kJ |
| 2 BTU | 2.110112 kJ |
| 3 BTU | 3.165168 kJ |
| 4 BTU | 4.220223 kJ |
| 5 BTU | 5.275279 kJ |
| 6 BTU | 6.330335 kJ |
| 7 BTU | 7.385391 kJ |
| 8 BTU | 8.440447 kJ |
| 9 BTU | 9.495503 kJ |
| 10 BTU | 10.55056 kJ |
| 12 BTU | 12.66067 kJ |
| 15 BTU | 15.82584 kJ |
| 20 BTU | 21.10112 kJ |
| 25 BTU | 26.3764 kJ |
| 30 BTU | 31.65168 kJ |
| 40 BTU | 42.20223 kJ |
| 50 BTU | 52.75279 kJ |
| 60 BTU | 63.30335 kJ |
| 70 BTU | 73.85391 kJ |
| 75 BTU | 79.12919 kJ |
| 80 BTU | 84.40447 kJ |
| 90 BTU | 94.95503 kJ |
| 100 BTU | 105.5056 kJ |
| 150 BTU | 158.2584 kJ |
| 200 BTU | 211.0112 kJ |
| 250 BTU | 263.764 kJ |
| 500 BTU | 527.5279 kJ |
| 1,000 BTU | 1,055.056 kJ |
Going the other way? See the kilojoules to British thermal units chart.
About the units
British Thermal Unit (BTU)
A British thermal unit (International Table) is about 1,055 joules, the heat that warms one pound of water by one degree Fahrenheit.
Kilojoule (kJ)
A kilojoule is 1,000 joules. Food labels in Australia and Europe give energy in kJ next to kcal.
Frequently asked questions
How many kilojoules are in a British thermal unit?
There are 1.055055853 kilojoules in a British thermal unit.
How many British thermal units are in a kilojoule?
There are 0.9478171203 British thermal units in a kilojoule.
How do you convert British thermal units to kilojoules?
To convert British thermal units to kilojoules, multiply the number of British thermal units by 1.055055853.
What is 5 British thermal units in kilojoules?
5 British thermal units equals 5.27528 kilojoules.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.