British thermal units to kilojoules converter
Kilojoules (kJ)
1 British thermal unit = 1.055055853 kilojoules
How to convert British thermal units to kilojoules
kJ = BTU × 1.05505585262
Multiply the number of British thermal units by 1.05505585262 to get kilojoules. Going the other way, divide by 1.05505585262 (or multiply by 0.947817120313).
One British thermal unit is exactly defined as 1.05505585262 kilojoules (to 12 significant figures), and one kilojoule is 0.947817120313 British thermal units.
Worked examples
- Convert 5 British thermal units: 5 × 1.05505585262 = 5.275279263 5.275279263 kilojoules.
- Convert 12.5 British thermal units: 12.5 × 1.05505585262 = 13.18819816 13.18819816 kilojoules.
- Convert 250 British thermal units: 250 × 1.05505585262 = 263.7639632 263.7639632 kilojoules.
Quick-reference table
| BTU | kJ |
|---|---|
| 1 | 1.055055853 |
| 2 | 2.110111705 |
| 3 | 3.165167558 |
| 5 | 5.275279263 |
| 10 | 10.55055853 |
| 15 | 15.82583779 |
| 20 | 21.10111705 |
| 25 | 26.37639632 |
| 50 | 52.75279263 |
| 75 | 79.12918895 |
| 100 | 105.5055853 |
| 1,000 | 1,055.055853 |
| kJ | BTU |
|---|---|
| 1 | 0.9478171203 |
| 2 | 1.895634241 |
| 3 | 2.843451361 |
| 5 | 4.739085602 |
| 10 | 9.478171203 |
| 15 | 14.2172568 |
| 20 | 18.95634241 |
| 25 | 23.69542801 |
| 50 | 47.39085602 |
| 75 | 71.08628402 |
| 100 | 94.78171203 |
| 1,000 | 947.8171203 |
Related conversions
- ⇄ Kilojoules to British thermal units
- British thermal units to joules
- British thermal units to calories
- British thermal units to kilocalories
- British thermal units to watt-hours
- British thermal units to kilowatt-hours
- British thermal units to therms
- British thermal units to electronvolts
- British thermal units to foot-pounds
Frequently asked questions
How many kilojoules are in 1 British thermal unit?
1 British thermal unit equals 1.055055853 kilojoules.
What is the formula to convert British thermal units to kilojoules?
Use kJ = BTU × 1.05505585262. Multiply the number of British thermal units by 1.05505585262 to get kilojoules. Going the other way, divide by 1.05505585262 (or multiply by 0.947817120313).
What is 100 British thermal units in kilojoules?
100 British thermal units is 105.5055853 kilojoules.