Joule to BTU Converter
1 Joule = 0.00094781 BTU. To convert Joules to BTU, multiply by 0.00094781.
Result updates as you type
Recent:
1 Joule = 0.00094781 BTU
Formula
To convert Joules to BTU, multiply the value by 0.00094781. One Joule equals 0.00094781 BTU.
BTU = J × 0.00094781
For a quick mental estimate, multiply Joules by about 0.0009 — the exact factor is 0.00094781.
Worked examples
- 1 Joule = 0.00094781 BTU
- 5 Joules = 0.00473907 BTU
- 10 Joules = 0.00947813 BTU
- 100 Joules = 0.09478134 BTU
Joules to BTU table
| Joules (J) | BTU (BTU) |
|---|---|
| 1 | 0.00094781 |
| 2 | 0.00189563 |
| 3 | 0.00284344 |
| 4 | 0.00379125 |
| 5 | 0.00473907 |
| 10 | 0.00947813 |
| 25 | 0.02369533 |
| 50 | 0.04739067 |
| 100 | 0.09478134 |
| 250 | 0.23695335 |
| 500 | 0.4739067 |
| 1000 | 0.94781339 |
About Joule and BTU
Both the Joule (J) and the BTU (BTU) measure energy. One Joule is equal to 0.00094781 BTU, so you can convert any measurement by multiplying by 0.00094781. The calculator above updates instantly, and the reference table lists common Joule-to-BTU values for quick lookups.
Unit definitions
- Joule (J)
- The Joule (J) is the reference unit for energy in this converter — every other energy unit is defined relative to it.
- BTU (BTU)
- The BTU (BTU) is a unit of energy equal to 1055.06 Joules.
Frequently asked questions
- How do you convert Joules to BTU?
- Multiply the number of Joules by 0.00094781. For example, 1 Joule × 0.00094781 = 0.00094781 BTU.
- How many BTU are in a Joule?
- There are 0.00094781 BTU in one Joule.
- What is 10 Joules in BTU?
- 10 Joules is equal to 0.00947813 BTU.
- How do you convert BTU back to Joules?
- Multiply the number of BTU by 1055.06 to get Joules. One BTU equals 1055.06 Joules.