Convert British Thermal Unit (IT) to Joule
Live bidirectional calculator for British Thermal Units (IT) (BTU) and Joules (J) with verified formula and conversion charts.
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How the Calculation Works (Linear Scaling)
Since 1 British Thermal Unit (IT) = 1055.055853 Joules, multiply the value in British Thermal Units (IT) by 1055.055853.
British Thermal Unit (IT) to Joule Conversion Table
Precomputed values for quick reference and printing.
| British Thermal Unit (IT) | Joule |
|---|---|
| 1 BTU | 1055.0559 J |
| 2 BTU | 2110.1117 J |
| 3 BTU | 3165.1676 J |
| 4 BTU | 4220.2234 J |
| 5 BTU | 5275.2793 J |
| 6 BTU | 6330.3351 J |
| 7 BTU | 7385.391 J |
| 8 BTU | 8440.4468 J |
| 9 BTU | 9495.5027 J |
| 10 BTU | 10550.5585 J |
| 15 BTU | 15825.8378 J |
| 20 BTU | 21101.1171 J |
| 25 BTU | 26376.3963 J |
| 30 BTU | 31651.6756 J |
| 40 BTU | 42202.2341 J |
| 50 BTU | 52752.7926 J |
| 75 BTU | 79129.1889 J |
| 100 BTU | 105505.5853 J |
| Joule | British Thermal Unit (IT) |
|---|---|
| 1 J | 0.0009 BTU |
| 2 J | 0.0019 BTU |
| 3 J | 0.0028 BTU |
| 4 J | 0.0038 BTU |
| 5 J | 0.0047 BTU |
| 6 J | 0.0057 BTU |
| 7 J | 0.0066 BTU |
| 8 J | 0.0076 BTU |
| 9 J | 0.0085 BTU |
| 10 J | 0.0095 BTU |
| 15 J | 0.0142 BTU |
| 20 J | 0.019 BTU |
| 25 J | 0.0237 BTU |
| 30 J | 0.0284 BTU |
| 40 J | 0.0379 BTU |
| 50 J | 0.0474 BTU |
| 75 J | 0.0711 BTU |
| 100 J | 0.0948 BTU |
๐ Standard Benchmark Reference Values
International Steam Table definition (London, 1956).
Exact RatioAbout British Thermal Unit (IT) (BTU)
The International Table British thermal unit is defined as exactly 1,055.05585262 joules.
History: Adopted by the Fifth International Conference on the Properties of Steam (London, 1956).
Common Uses: Heating and air conditioning furnace capacities, natural gas heating ratings.
About Joule (J)
The SI coherent derived unit of energy, equal to the work done by a force of one newton over a distance of one meter (1 Nยทm or 1 Wยทs).
History: Named in honor of English physicist James Prescott Joule for his experiments on the mechanical equivalent of heat.
Common Uses: Physics, mechanical work, kinetic energy, laser pulse energy.
โ Frequently Asked Questions
How many Joules are in 1 British Thermal Unit (IT)?
There are exactly 1055.055853 Joules in 1 British Thermal Unit (IT) (1 BTU = 1055.055853 J).
What is the formula to convert British Thermal Unit (IT) to Joule?
The formula is: Joule = British Thermal Unit (IT) ร 1055.055853. Since 1 British Thermal Unit (IT) = 1055.055853 Joules, multiply the value in British Thermal Units (IT) by 1055.055853.
How do I convert 1 BTU to J manually?
To convert 1 BTU to J: apply the formula Joule = British Thermal Unit (IT) ร 1055.055853. Substituting gives: 1 ร 1055.055853 = 1055.0559 J.