Handy Units
BTU to KilojoulesBTU → kJ
1 BTU = 1.05506 kJ · 1 kJ = 0.947817 BTU
Formula
kJ ≈ BTU × 1.05506
Example: 1,000 BTU = 1,000 × 1.05506 = 1,055.06 kJ
These units differ only by a fixed factor: multiply by it to convert, divide to go back. The factors are exact international definitions (for example 1 inch = 2.54 cm exactly); results are rounded only for display.
BTU and Kilojoules chart
| BTU (BTU) | Kilojoules (kJ) |
|---|---|
| 1 BTU | 1.05506 kJ |
| 100 BTU | 105.506 kJ |
| 1,000 BTU | 1,055.06 kJ |
| 10,000 BTU | 10,550.6 kJ |
| Kilojoules (kJ) | BTU (BTU) |
|---|---|
| 1 kJ | 0.947817 BTU |
| 100 kJ | 94.7817 BTU |
| 500 kJ | 473.909 BTU |
| 1,000 kJ | 947.817 BTU |
| 2,000 kJ | 1,895.63 BTU |
| 5,000 kJ | 4,739.09 BTU |
| 8,400 kJ | 7,961.66 BTU |
About these units
British thermal unit (BTU)British thermal units, about 1,055 J; used for heating and cooling in the US.
Kilojoule (kJ)Kilojoules, the energy unit on nutrition labels in China, Europe and Australia.
Questions
How many Kilojoules are in 1 BTU?
1 BTU = 1.05506 kJ.
How many BTU are in 1 Kilojoules?
1 kJ = 0.947817 BTU.