British thermal units (IT) to Kilojoules
1 BTU ≈ 1.055 kJ. Edit either value to convert instantly.
Conversion formula
kJ = BTU × (1,055.05585262) × (0.001)1 BTU ≈ 1.05506 kJ
British thermal unit (IT) (BTU)
British thermal unit (IT) is a unit of energy: 1 BTU = 1,055.05585262 J. Uses the International Table definition (IT), not the thermochemical BTU.
Source: NBSIR 81-2401, Appendix A3.2: International Table British thermal unit
kilojoule (kJ)
Kilojoule is a unit of energy: 1 kJ = 1,000 J.
Source: BIPM, The International System of Units (SI), 9th edition
Conversion table
| BTU | kJ |
|---|---|
| ≈ 1.05506 | |
| ≈ 2.11011 | |
| ≈ 5.27528 | |
| ≈ 10.5506 | |
| ≈ 15.8258 | |
| ≈ 21.1011 | |
| ≈ 26.3764 | |
| ≈ 31.6517 | |
| ≈ 42.2022 | |
| ≈ 47.4775 |
| BTU | kJ |
|---|---|
| ≈ 52.7528 | |
| ≈ 63.3034 | |
| ≈ 73.8539 | |
| ≈ 84.4045 | |
| ≈ 94.955 | |
| ≈ 105.506 | |
| ≈ 158.258 | |
| ≈ 168.809 | |
| ≈ 179.359 | |
| ≈ 189.91 |
Frequently asked questions
How many kilojoules are in 1 British thermal unit (IT)?
1 BTU ≈ 1.055 kJ. kJ = BTU × (1,055.05585262) × (0.001)
How do I convert BTU to kJ?
kJ = BTU × (1,055.05585262) × (0.001)
Is 1 British thermal unit (IT) bigger than 1 kilojoule?
1 BTU ≈ 1.055 kJ.
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