Table Of Contents
Joules to British thermal units Conversion
1 joules (joule) is equal to 0.0009478171203 British thermal units (BTU).
1 joule = 0.0009478171203 BTU
or
1 BTU = 1055.055853 joule
Formula
To convert a energy from joules (joule) to British thermal units (BTU), divide the energy in joules by 1055.055853
e(BTU) = e(joule) / 1055.055853
Examples:
Convert 1 joules to British thermal units:
e(BTU) = 1joule / 1055.055853 = 0.0009478171203 BTU
Conversion table
| Joules (joule) | British thermal units (BTU) |
|---|---|
| 1 joule | 9.47817e-4 BTU |
| 2 joule | 0.001895634 BTU |
| 3 joule | 0.002843451 BTU |
| 5 joule | 0.004739086 BTU |
| 10 joule | 0.009478171 BTU |
| 20 joule | 0.018956342 BTU |
| 25 joule | 0.023695428 BTU |
| 50 joule | 0.047390856 BTU |
| 100 joule | 0.094781712 BTU |
| 250 joule | 0.23695428 BTU |
| 500 joule | 0.47390856 BTU |
| 1000 joule | 0.94781712 BTU |
| British thermal units (BTU) | Joules (joule) |
|---|---|
| 1 BTU | 1055.05585262 joule |
| 2 BTU | 2110.11170524 joule |
| 3 BTU | 3165.16755786 joule |
| 5 BTU | 5275.2792631 joule |
| 10 BTU | 10550.5585262 joule |
| 20 BTU | 21101.1170524 joule |
| 25 BTU | 26376.3963155 joule |
| 50 BTU | 52752.792631 joule |
| 100 BTU | 105505.585262 joule |
| 250 BTU | 263763.963155 joule |
| 500 BTU | 527527.92631 joule |
| 1000 BTU | 1055055.85262 joule |
Frequently asked questions
How do I convert joules to British thermal units?
Divide the value in joules by 1055.055853 to get the result in British thermal units. For example, 5 joule ÷ 1055.055853 = 0.004739086 BTU.
How many British thermal units are in 1 joules?
1 joules (joule) is equal to 9.47817e-4 British thermal units (BTU).
How do I convert British thermal units back to joules?
Use the inverse operation: multiply the value in British thermal units by 1055.055853 to get the result in joules.
How accurate is the joules to British thermal units conversion?
The converter multiplies by the conversion factor 1055.055853 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically (NIST SP 811, 2008 edition)
- NIST Guide to the SI (SP 811), Footnotes (notes 22 and 23)
- CODATA Value: electron volt-joule relationship (NIST Fundamental Physical Constants)
