Power and Energy
kJtoBTU
Convert kilojoules (kJ) to International Table BTUs (BTU).
Factor1 kJ = 0.9478171 BTU
Converter
kJ
Accepts numbers or expressions, e.g. 150 + 14.7
Result
BTU
Rendered to 6 significant figures.
Formula
Formula
BTU = kJ × 0.9478171
Multiply any value in kilojoules by 0.9478171 to obtain the value in International Table BTUs.
Worked example
Convert 1055 kJ to BTU.
- 01Start with 1055 kJ.
- 02Multiply by the conversion factor: 1055 × 0.9478171 = 999.947 BTU.
Result1055 kJ = 999.947 BTU
Conversion table
| kJ | BTU |
|---|---|
| 1 | 0.94782 |
| 2 | 1.8956 |
| 5 | 4.7391 |
| 10 | 9.4782 |
| 20 | 18.956 |
| 50 | 47.391 |
| 100 | 94.782 |
| 200 | 189.56 |
| 500 | 473.91 |
| 1000 | 947.82 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kJ to BTU?
1 kJ equals 0.9478171 BTU. To convert, multiply the value in kilojoules by 0.9478171.
How do I convert 1 kJ to BTU?
1 kJ = 0.947817 BTU. For any value, multiply by 0.9478171.
How do I convert BTU back to kJ?
Divide by the same factor — or equivalently, multiply by 1.055056. So 1 BTU = 1.05506 kJ.
When would I need to convert kilojoule to International Table BTU?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).