1 kilojoule to BTU
1 kJ = 0.94781712 BTU. Change the amount below, or read the formula and the reference table further down.
1 kilojoule equals
BTU
1 kJ = 0.94781712 BTU
The formula
Kilojoules and BTU both measure energy from the same zero, so a single multiplier does the job.
BTU = kJ × 0.9478171203
Going the other way? Convert BTU to kilojoules.
Kilojoules to BTU table
Values either side of 1 kJ.
| Kilojoules (kJ) | BTU (BTU) |
|---|---|
| -4 | -3.7913 |
| -3.5 | -3.3174 |
| -3 | -2.8435 |
| -2.5 | -2.3695 |
| -2 | -1.8956 |
| -1.5 | -1.4217 |
| -1 | -0.947817 |
| -0.5 | -0.473909 |
| 0 | 0 |
| 0.5 | 0.473909 |
| 1 | 0.947817 |
| 1.5 | 1.4217 |
| 2 | 1.8956 |
| 2.5 | 2.3695 |
| 3 | 2.8435 |
| 3.5 | 3.3174 |
| 4 | 3.7913 |
| 4.5 | 4.2652 |
| 5 | 4.7391 |
| 5.5 | 5.213 |
| 6 | 5.6869 |
Questions people ask
- How many BTU are in a kilojoule?
- One kilojoule equals 0.9478171203 BTU.
- How do I convert kilojoules to BTU by hand?
- Multiply the number of kilojoules by 0.9478171203. For a rough check, 0.948 is close enough for most everyday use.
- What is 1 kilojoule in BTU?
- 1 kilojoule is 0.94781712 BTU.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.