1 British thermal unit (BTU) = 1,055.055853 joules (J). To convert, multiply by 1,055.055853: J = BTU × 1,055.055853. For example, 5 BTU = 5,275.279263 J.
J = BTU × 1,055.055853
British thermal units to joules table
| British thermal units (BTU) | Joules (J) |
|---|---|
| 1 | 1,055.055853 |
| 2 | 2,110.111705 |
| 3 | 3,165.167558 |
| 4 | 4,220.22341 |
| 5 | 5,275.279263 |
| 10 | 10,550.55853 |
| 20 | 21,101.11705 |
| 25 | 26,376.39632 |
| 50 | 52,752.79263 |
| 100 | 105,505.5853 |
| 250 | 263,763.9632 |
| 500 | 527,527.9263 |
| 1,000 | 1,055,055.853 |
The two units
British thermal unit (BTU). The International Table BTU, used for heating and air-conditioning ratings.
Joule (J). The SI unit of energy: one newton acting over one meter.
Convert British thermal units to other units
- British thermal units to kilojoules — 1 BTU = 1.055055853 kJ
- British thermal units to calories — 1 BTU = 252.1644007 cal
- British thermal units to kilocalories — 1 BTU = 0.2521644007 kcal
- British thermal units to watt-hours — 1 BTU = 0.2930710702 Wh
- British thermal units to kilowatt-hours — 1 BTU = 0.0002930711 kWh
- British thermal units to electronvolts — 1 BTU = 6.585141e+21 eV
Convert other units to joules
Questions people ask
- How many joules are in a British thermal unit?
- 1,055.055853.
- How do you convert British thermal units to joules?
- J = BTU × 1,055.055853. It is the same as dividing by 0.0009478171.
- How do you convert joules back to British thermal units?
- BTU = J ÷ 1,055.055853. See joules to British thermal units.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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