Convert kilojoules to BTU
Kilojoules to British thermal units. Enter a value to convert, or use the kilojoules to BTU chart further down the page.
1 kilojoule equals 0.9478171203 British thermal units. Going the other way, 1 British thermal unit = 1.055055853 kilojoules.
How to convert kilojoules to BTU
To convert kilojoules to British thermal units, multiply the kilojoule value by 0.9478171203. You can also divide by 1.055055853 to get the same answer.
BTU = kJ × 0.9478171203
Worked example
Convert 15 kJ to British thermal units:
15 kJ = 14.2172568 BTU
kilojoules to BTU conversion chart
Use this kilojoules to BTU table for quick reference without typing anything.
| kilojoules (kJ) | British thermal units (BTU) |
|---|---|
| 0.01 kJ | 0.009478171203 BTU |
| 0.1 kJ | 0.09478171203 BTU |
| 1 kJ | 0.9478171203 BTU |
| 2 kJ | 1.895634241 BTU |
| 3 kJ | 2.843451361 BTU |
| 5 kJ | 4.739085602 BTU |
| 10 kJ | 9.478171203 BTU |
| 20 kJ | 18.95634241 BTU |
| 50 kJ | 47.39085602 BTU |
| 100 kJ | 94.78171203 BTU |
| 1,000 kJ | 947.8171203 BTU |
What is a kilojoule?
The kilojoule is 1,000 joules and is the food-energy unit on nutrition labels outside the United States.
What is a British thermal unit?
The BTU is the energy needed to raise one pound of water by one degree Fahrenheit — about 1,055 joules. It rates heating and air-conditioning equipment in the US.
Frequently asked questions
How many BTU are in a kilojoule?
1 kilojoules equals 0.9478171203 BTU. Going the other way, 1 BTU is 1.055055853 kilojoules.
How do you convert kilojoules to BTU?
To convert kilojoules to British thermal units, multiply the kilojoule value by 0.9478171203. You can also divide by 1.055055853 to get the same answer.
What is 10 kilojoules in BTU?
10 kilojoules equals 9.478171203 BTU. The conversion chart on this page lists the other values people look up most often.
Related energy conversions
Convert kilojoules to other units
- BTU to kilojoules
- kilojoules to joules
- kilojoules to calories
- kilojoules to kilocalories
- kilojoules to kWh
- kilojoules to Wh
- kilojoules to foot pounds
Convert other units to BTU
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