ACCURATE CONVERSION
British thermal units to Joules Converter
Convert British thermal units (BTU) to joules (J) with a standards-based formula.
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How to convert British thermal units to joules
Enter a value in the converter above. The result updates immediately using the relationship below.
FORMULA1 British thermal unit = 1,055.05585262 joules
British thermal units to Joules conversion table
| British thermal units (BTU) | Joules (J) |
|---|---|
| 1 | 1,055.05585262 |
| 5 | 5,275.2792631 |
| 10 | 10,550.5585262 |
| 20 | 21,101.1170524 |
| 50 | 52,752.792631 |
| 100 | 105,505.585262 |
Common values
For a quick estimate, multiply by the factor above. Use more decimal places when technical work requires additional precision.
Frequently asked questions
How many joules are in one British thermal unit?
One British thermal unit equals 1,055.05585262 joules.
How do you convert British thermal units to joules?
Multiply the British thermal unit value by 1,055.05585262.
Can I convert joules back to British thermal units?
Yes. One joule equals 0.00094782 British thermal units; you can also use the swap button.