British Thermal Unit to Joule
Free instant british thermal unit to joule converter. 1 BTU = 1055.06 J.
Common British Thermal Unit to Joule values
| British Thermal Unit (BTU) | Joule (J) |
|---|---|
| 1 | 1055.06 |
| 5 | 5275.28 |
| 10 | 10550.6 |
| 25 | 26376.4 |
| 50 | 52752.8 |
| 100 | 105506 |
| 500 | 527528 |
| 1000 | 1055060 |
How does British Thermal Unit to Joule conversion work?
Type a value in the British Thermal Unit (BTU) field and the equivalent in Joule (J) 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.
British Thermal Unit. The energy needed to raise 1 pound of water by 1°F. Common in heating/cooling system ratings.
Joule. The SI unit of energy. About the energy of a small apple falling from waist height.
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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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