Joule to British Thermal Unit
Free instant joule to british thermal unit converter. 1 J = 0.000947817 BTU.
Common Joule to British Thermal Unit values
| Joule (J) | British Thermal Unit (BTU) |
|---|---|
| 1 | 0.000947817 |
| 5 | 0.00473909 |
| 10 | 0.00947817 |
| 25 | 0.0236954 |
| 50 | 0.0473909 |
| 100 | 0.0947817 |
| 500 | 0.473909 |
| 1000 | 0.947817 |
How does Joule to British Thermal Unit conversion work?
Type a value in the Joule (J) field and the equivalent in British Thermal Unit (BTU) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Joule. The SI unit of energy. About the energy of a small apple falling from waist height.
British Thermal Unit. The energy needed to raise 1 pound of water by 1°F. Common in heating/cooling system ratings.
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Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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