1 BTU to joules
1 BTU = 1,055.06 J. Change the amount below, or read the formula and the reference table further down.
1 BTU equals
joules
1 BTU = 1,055.06 J
The formula
BTU and joules both measure energy from the same zero, so a single multiplier does the job.
J = BTU × 1,055.06
Going the other way? Convert joules to BTU.
BTU to joules table
Values either side of 1 BTU.
| BTU (BTU) | Joules (J) |
|---|---|
| -4 | -4,220.22 |
| -3.5 | -3,692.7 |
| -3 | -3,165.17 |
| -2.5 | -2,637.64 |
| -2 | -2,110.11 |
| -1.5 | -1,582.58 |
| -1 | -1,055.06 |
| -0.5 | -527.53 |
| 0 | 0 |
| 0.5 | 527.53 |
| 1 | 1,055.06 |
| 1.5 | 1,582.58 |
| 2 | 2,110.11 |
| 2.5 | 2,637.64 |
| 3 | 3,165.17 |
| 3.5 | 3,692.7 |
| 4 | 4,220.22 |
| 4.5 | 4,747.75 |
| 5 | 5,275.28 |
| 5.5 | 5,802.81 |
| 6 | 6,330.34 |
Questions people ask
- How many joules are in a BTU?
- One BTU equals 1,055.06 joules.
- How do I convert BTU to joules by hand?
- Multiply the number of BTU by 1,055.06. For a rough check, 1,055.06 is close enough for most everyday use.
- What is 1 BTU in joules?
- 1 BTU is 1,055.06 joules.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.