Btu to kJ converter
1 BTU equals 1.055056 kilojoules. Conversions use kJ = Btu × 1.0551
Btu → 1.055056 kJ
kJ = Btu × 1.0551
Converter
Worked examples
- 1 Btu = 1.055056 kJ
- 2 Btu = 2.110112 kJ
- 5 Btu = 5.275279 kJ
- 10 Btu = 10.550559 kJ
- 100 Btu = 105.506 kJ
BTUs to kilojoules conversion table
| Btu | kJ | Arithmetic |
|---|---|---|
| 1 Btu | 1.055056 kJ | × 1.0551 |
| 2 Btu | 2.110112 kJ | × 1.0551 |
| 3 Btu | 3.165168 kJ | × 1.0551 |
| 4 Btu | 4.220223 kJ | × 1.0551 |
| 5 Btu | 5.275279 kJ | × 1.0551 |
| 6 Btu | 6.330335 kJ | × 1.0551 |
| 8 Btu | 8.440447 kJ | × 1.0551 |
| 10 Btu | 10.550559 kJ | × 1.0551 |
| 12 Btu | 12.66067 kJ | × 1.0551 |
| 15 Btu | 15.825838 kJ | × 1.0551 |
| 20 Btu | 21.101117 kJ | × 1.0551 |
| 25 Btu | 26.376396 kJ | × 1.0551 |
| 30 Btu | 31.651676 kJ | × 1.0551 |
| 40 Btu | 42.202234 kJ | × 1.0551 |
| 50 Btu | 52.752793 kJ | × 1.0551 |
| 60 Btu | 63.303351 kJ | × 1.0551 |
| 70 Btu | 73.85391 kJ | × 1.0551 |
| 80 Btu | 84.404468 kJ | × 1.0551 |
| 90 Btu | 94.955027 kJ | × 1.0551 |
| 100 Btu | 105.506 kJ | × 1.0551 |
How to convert Btu to kJ
- Take your value in BTUs.
- Multiply by 1.0551
- That is your answer in kilojoules — no rounding needed until you choose a display precision.
Related conversions
kJ to BtuJ to kJkJ to JkJ to calkJ to kcalkJ to WhkJ to kWhcal to kJkcal to kJall energy units
Questions
How many kilojoules in 1 BTU?
Exactly 1.055056 kJ. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert Btu to kJ?
Multiply the BTUs figure by 1.0551 — or use the converter above, which updates as you type.
Is Btu to kJ the same as kJ to Btu?
No — they are inverses. One Btu is 1.055056 kJ, while one kJ is 0.94781712 Btu.
What is 1 Btu in kJ?
1 Btu = 1.055056 kJ (see the value page for the full arithmetic).