joules to BTU Converter
Convert joules to BTU instantly: 1 joules = 0.000947817 BTU. Free converter with the formula, a reference table and FAQs — no sign-up.
| joules | BTU |
|---|
How to convert joules to BTU
Enter your value
Type the number of joules you want to convert into the left box. The result in btu appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — BTU to joules. Your current value carries across so you don't have to re-enter anything.
About joules and BTU
joules and BTU are common energy measurements.
Worked examples: joules to BTU
Multiply the joules value by 0.000947817 to get BTU. A few quick examples:
- 5 joules × 0.000947817 = 0.00473908 BTU
- 25 joules × 0.000947817 = 0.0236954 BTU
- 250 joules × 0.000947817 = 0.236954 BTU
Related conversions
| joules | BTU |
|---|---|
| 1 | 0.0009478 |
| 100 | 0.09478 |
| 500 | 0.4739 |
| 1000 | 0.9478 |
| 5000 | 4.739 |
| 10000 | 9.478 |
Frequently asked questions
How do I convert joules to BTU?
To convert joules to BTU, multiply by 0.000947817. Or use the calculator above for instant results.
How many BTU are in 1 joules?
1 joules equals 0.000947817 BTU.
Is the joules to BTU converter free?
Yes, the joules to BTU converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.