Convert Joule to British Thermal Unit
Use this free converter to change joules (J) into british thermal units (BTU). Joule and british thermal unit both measure energy. As a quick reference, 1 J equals 0.00094781712 BTU, and 1 BTU equals 1055.0558 J.
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British Thermal Unit (BTU)
0.00094781712
1 J = 0.00094781712 BTU
Energy conversion table
| Joule | British Thermal Unit |
|---|---|
| 0.01 | 0.0000094781712 |
| 0.1 | 0.000094781712 |
| 0.5 | 0.00047390856 |
| 1 | 0.00094781712 |
| 2 | 0.0018956342 |
| 3 | 0.0028434514 |
| 5 | 0.0047390856 |
| 10 | 0.0094781712 |
| 20 | 0.018956342 |
| 25 | 0.023695428 |
| 50 | 0.047390856 |
| 100 | 0.094781712 |
| 1,000 | 0.94781712 |
How to convert Joule to British Thermal Unit
Multiply the joule value by 0.00094781712 to get british thermal units.
- Enter the number of joules you want to convert.
- The converter instantly shows the equivalent value in british thermal units.
- Worked example: 15 J × 0.00094781712 = 0.014217257 BTU.
- Use the swap button to reverse the conversion (british thermal unit to joule).
About these units
Joule (J)
- Definition
- The joule (J) is the SI unit of energy, the work done by a force of one newton over one meter.
- History
- Named after physicist James Prescott Joule, who studied the link between heat and work.
- Current use
- Joules measure energy, work, and heat throughout science and engineering.
British Thermal Unit (BTU)
- Definition
- A British thermal unit (BTU) is the energy needed to raise one pound of water by one degree Fahrenheit.
- History
- It developed with steam engineering in Britain and the United States.
- Current use
- BTUs rate heating, air-conditioning, and appliance energy in the US.
Frequently asked questions
How many british thermal units are in a joule?
There are 0.00094781712 BTU in 1 J. To convert, multiply the number of joules by 0.00094781712.
How do I convert joules to british thermal units?
Multiply the joule value by 0.00094781712 to get british thermal units. For example, 10 J = 0.0094781712 BTU.
Is this joule-to-british thermal unit converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Joule to other energy units
| Unit | 1 Joule equals |
|---|---|
| Kilojoule (kJ) | 0.001 kJ |
| Calorie (cal) | 0.23900574 cal |
| Kilocalorie (kcal) | 0.00023900574 kcal |
| Watt Hour (Wh) | 0.00027777778 Wh |
| Kilowatt Hour (kWh) | 2.7778e-7 kWh |
| Electronvolt (eV) | 6.2415e+18 eV |
| British Thermal Unit (BTU) | 0.00094781712 BTU |
| Foot-Pound (ft·lb) | 0.73756215 ft·lb |