Joules to British thermal units converter
British thermal units (BTU)
1 joule = 0.0009478171203 British thermal units
How to convert joules to British thermal units
BTU = J × 0.000947817120313
Multiply the number of joules by 0.000947817120313 to get British thermal units. Going the other way, divide by 0.000947817120313 (or multiply by 1055.05585262).
One joule is exactly defined as 0.000947817120313 British thermal units (to 12 significant figures), and one British thermal unit is 1055.05585262 joules.
Worked examples
- Convert 5 joules: 5 × 0.000947817120313 = 0.004739085602 0.004739085602 British thermal units.
- Convert 12.5 joules: 12.5 × 0.000947817120313 = 0.011847714 0.011847714 British thermal units.
- Convert 250 joules: 250 × 0.000947817120313 = 0.2369542801 0.2369542801 British thermal units.
Quick-reference table
| J | BTU |
|---|---|
| 1 | 0.0009478171203 |
| 2 | 0.001895634241 |
| 3 | 0.002843451361 |
| 5 | 0.004739085602 |
| 10 | 0.009478171203 |
| 15 | 0.0142172568 |
| 20 | 0.01895634241 |
| 25 | 0.02369542801 |
| 50 | 0.04739085602 |
| 75 | 0.07108628402 |
| 100 | 0.09478171203 |
| 1,000 | 0.9478171203 |
| BTU | J |
|---|---|
| 1 | 1,055.055853 |
| 2 | 2,110.111705 |
| 3 | 3,165.167558 |
| 5 | 5,275.279263 |
| 10 | 10,550.55853 |
| 15 | 15,825.83779 |
| 20 | 21,101.11705 |
| 25 | 26,376.39632 |
| 50 | 52,752.79263 |
| 75 | 79,129.18895 |
| 100 | 105,505.5853 |
| 1,000 | 1,055,055.853 |
Related conversions
Frequently asked questions
How many British thermal units are in 1 joule?
1 joule equals 0.0009478171203 British thermal units.
What is the formula to convert joules to British thermal units?
Use BTU = J × 0.000947817120313. Multiply the number of joules by 0.000947817120313 to get British thermal units. Going the other way, divide by 0.000947817120313 (or multiply by 1055.05585262).
What is 100 joules in British thermal units?
100 joules is 0.09478171203 British thermal units.