BTU to Joules
Convert btu (BTU) to joules (J) instantly — with formula and reference table.
BTU
J
Quick answer: 1 BTU = 1055.05585 J. To convert btu to joules, multiply by BTU × 1055.05585.
Converting btu to joules
This converter changes a value in btu (BTU) into joules (J). One btu equals 1055.05585 J. One British thermal unit equals 1,055.06 joules. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
J = BTU × 1055.05585
Example
Convert 10 BTU to J: 10 × 1055.05585 = 10550.5585 J.
BTU to Joules conversion table
| BTU (BTU) | Joules (J) |
|---|---|
| 1 BTU | 1055.05585 J |
| 2 BTU | 2110.1117 J |
| 3 BTU | 3165.16755 J |
| 5 BTU | 5275.27925 J |
| 10 BTU | 10550.5585 J |
| 20 BTU | 21101.117 J |
| 25 BTU | 26376.39625 J |
| 50 BTU | 52752.7925 J |
| 100 BTU | 105505.585 J |
Popular btu to joules conversions
Quick answers for the BTU values people look up most often:
- 4 BTU = 4220.2234 J
- 6 BTU = 6330.3351 J
- 7 BTU = 7385.391 J
- 8 BTU = 8440.4468 J
- 9 BTU = 9495.5027 J
- 12 BTU = 12660.6702 J
- 15 BTU = 15825.8378 J
- 30 BTU = 31651.6755 J
- 40 BTU = 42202.234 J
- 60 BTU = 63303.351 J
- 75 BTU = 79129.1888 J
- 80 BTU = 84404.468 J
- 90 BTU = 94955.0265 J
- 150 BTU = 158258.3775 J
- 200 BTU = 211011.17 J
- 250 BTU = 263763.9625 J
- 500 BTU = 527527.925 J
- 1000 BTU = 1055055.85 J
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How to use this converter
- Enter a value in the btu (BTU) field.
- Read the converted value in joules (J) below.
- Type into the J field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many joules are in a BTU?
1 BTU equals 1,055.06 joules.
How do I convert 10 BTU to joules?
10 times 1,055.06 = 10,550.6 joules.
What is a BTU used for?
BTU rates heating and air-conditioning capacity in the US.
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