Convert Joules to BTU
Convert joules to btu (J to BTU) instantly. Free, accurate joules to btu calculator with conversion formula and chart.
1 J = 0.0009478171203 BTU
Conversion formula
1 joule = 0.0009478171203 btu
Multiply a value in joules by 0.0009478171203 to get btu; divide by the same number to convert back.
Joules to BTU conversion table
| Joules (J) | BTU (BTU) |
|---|---|
| 1 J | 0.000947817 BTU |
| 2 J | 0.00189563 BTU |
| 5 J | 0.00473909 BTU |
| 10 J | 0.00947817 BTU |
| 25 J | 0.0236954 BTU |
| 50 J | 0.0473909 BTU |
| 100 J | 0.0947817 BTU |
| 500 J | 0.473909 BTU |
| 1,000 J | 0.947817 BTU |
- For example, 12 joules is 0.0113738 btu.
- A value of 75 joules converts to 0.0710863 btu.
- Going the other way, 1 btu is 1,055.06 joules.
More energy conversions
About Joules to BTU
Easily convert joules (J) to btu (BTU) with this free, instant calculator. Enter a value in joules to see the equivalent in btu right away — accurate and calculated in your browser.
How to use Joules to BTU
- 1
Enter the number of joules you want to convert.
- 2
The equivalent value in btu appears instantly.
- 3
Switch units anytime to convert in either direction.
How to convert Joules to BTU
Enter any value in joules (J) and this calculator instantly shows the equivalent in btu (BTU) using the exact internationally agreed conversion factor — no rounding tricks, no ads in the way, and it works offline once the page is loaded.
Use the swap button to convert in the other direction (btu to joules), or switch to any other energy unit from the dropdown — the same page handles joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, btu, electronvolts.
Frequently Asked Questions
How do you convert joules to btu?
Enter your value in joules and the converter instantly shows the result in btu using the exact conversion factor.
Is the joules to btu converter free?
Yes — it's completely free, instant and requires no sign-up.
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