Megajoules (MJ) to British thermal units (BTU) Conversion
Megajoules
The megajoule (MJ) is a unit of energy equal to exactly 1,000,000 joules (10⁶ J). It is used in energy policy, engineering, and physics for large-scale energy quantities. One kilowatt-hour (kWh) equals exactly 3.6 MJ — the conversion fundamental to understanding electricity bills. A litre of petrol contains approximately 34 MJ of chemical energy. The explosive yield of conventional explosives is sometimes expressed in megajoules.
British thermal units
The British thermal unit (BTU) is a unit of energy approximately equal to 1,055.06 joules, defined as the energy required to raise the temperature of one pound of water by one degree Fahrenheit. It remains the standard unit for heating and cooling capacity in HVAC systems in the United States: air conditioners and furnaces are rated in BTU/hour. A typical residential air conditioner is rated at 5,000–24,000 BTU/h. One BTU equals approximately 0.000293 kWh.
| Megajoules (MJ) | British thermal units (BTU) |
|---|---|
| 0.1 MJ | 94.7817 BTU |
| 1 MJ | 947.8171 BTU |
| 2 MJ | 1,895.6342 BTU |
| 3 MJ | 2,843.4514 BTU |
| 5 MJ | 4,739.0856 BTU |
| 10 MJ | 9,478.1712 BTU |
| 20 MJ | 18,956.3424 BTU |
| 30 MJ | 28,434.5136 BTU |
| 50 MJ | 47,390.856 BTU |
| 100 MJ | 94,781.712 BTU |
| 1000 MJ | 947,817.1203 BTU |
Frequently Asked Questions (FAQ)
How many British thermal units are in 1 megajoules?
1 megajoules (MJ) is exactly 947.817 British thermal units (BTU).
How do I convert megajoules to British thermal units?
Multiply the value in megajoules by 947.817 to get the result in British thermal units. Or use the converter above — type any number and see the result instantly.