UnitConBTU to Joules Converter
Convert BTU to joules for thermodynamics problems, international energy comparisons, and when scientific calculations require SI units from US thermal energy inputs.
Formula
Multiply BTU by 1055.06 to get joules. To reverse, divide joules by 1055.06 to get BTU.
Quick reference
| British Thermal Unit (BTU) | Joule (J) |
|---|---|
| 1 | 1,055.056 |
| 10 | 10,550.56 |
| 100 | 105,505.6 |
| 1000 | 1,055,056 |
| 5000 | 5,275,279 |
| 10000 | 10,550,560 |
| 100000 | 105,505,600 |
| 1000000 | 1,055,056,000 |
| 10000000 | 10,550,560,000 |
| 100000000 | 105,505,600,000 |
About these units
British Thermal Unit
The BTU (British Thermal Unit) was defined as the energy required to raise one pound of water by 1°F at its maximum density. Multiple definitions exist (IT, thermochemical, mean); the International Table BTU (1055.055852 J) is the most commonly used.
Joule
The joule is the SI unit of energy, universally used in physics and chemistry. Converting US thermal data from BTU to joules is necessary when combining American engineering data with international scientific results.