Energy conversion
1 btu (international table) (BTUₕᵀ) equals 1.05505585262 kilojoule (kJ). Enter any value below to convert from BTUₕᵀ to kJ.
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1 BTUₕᵀ = 1.0550558526 kJ
| Unit | Value |
|---|---|
| Joule J | 1,055.05585262 |
| Kilojoule kJ | 1.0550558526 |
| Thermochemical calorie cal | 252.1644007218 |
| Kilocalorie kcal | 0.2521644007 |
| Watt-hour Wh | 0.2930710702 |
| Kilowatt-hour kWh | 0.0002930711 |
| BTU (International Table) BTUₕᵀ | 1 |
| Foot-pound ft·lb | 778.169262266 |
| Electronvolt eV | 6.5851406782e21 |
Formula
Use this relationship for a direct conversion:
2 BTUₕᵀ = 2.1101117052 kJ.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| BTU (International Table) (BTUₕᵀ) | Kilojoule (kJ) |
|---|---|
| 0.01 | 0.0105505585 |
| 0.1 | 0.1055055853 |
| 1 | 1.0550558526 |
| 2 | 2.1101117052 |
| 5 | 5.2752792631 |
| 10 | 10.5505585262 |
| 25 | 26.3763963155 |
| 50 | 52.752792631 |
| 100 | 105.505585262 |
| 1,000 | 1,055.05585262 |
From unit
The International Table British thermal unit.
Symbol: BTUₕᵀ
To unit
One thousand joules.
Symbol: kJ
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula kJ = BTUₕᵀ x 1.05505585262. 1 btu (international table) (BTUₕᵀ) equals 1.05505585262 kilojoule (kJ).
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
