British Thermal Units to Megajoules (BTU → MJ)
Formula
1 BTU = 0.00105506 MJConversion Table
| BTU | MJ |
|---|---|
| 0 | 0 |
| 1.0000 | 0.0010551 |
| 2.0000 | 0.0021101 |
| 3.0000 | 0.0031652 |
| 4.0000 | 0.0042202 |
| 5.0000 | 0.0052753 |
| 6.0000 | 0.0063304 |
| 7.0000 | 0.0073854 |
| 8.0000 | 0.0084405 |
| 9.0000 | 0.0094955 |
| 10.000 | 0.010551 |
| 11.000 | 0.011606 |
| 12.000 | 0.012661 |
| 13.000 | 0.013716 |
| 14.000 | 0.014771 |
| 15.000 | 0.015826 |
| 16.000 | 0.016881 |
| 17.000 | 0.017936 |
| 18.000 | 0.018991 |
| 19.000 | 0.020046 |
| BTU | MJ |
|---|---|
| 20.000 | 0.021101 |
| 21.000 | 0.022156 |
| 22.000 | 0.023211 |
| 23.000 | 0.024266 |
| 24.000 | 0.025321 |
| 25.000 | 0.026377 |
| 26.000 | 0.027432 |
| 27.000 | 0.028487 |
| 28.000 | 0.029542 |
| 29.000 | 0.030597 |
| 30.000 | 0.031652 |
| 31.000 | 0.032707 |
| 32.000 | 0.033762 |
| 33.000 | 0.034817 |
| 34.000 | 0.035872 |
| 35.000 | 0.036927 |
| 36.000 | 0.037982 |
| 37.000 | 0.039037 |
| 38.000 | 0.040092 |
| 39.000 | 0.041147 |
| BTU | MJ |
|---|---|
| 40.000 | 0.042202 |
| 41.000 | 0.043257 |
| 42.000 | 0.044313 |
| 43.000 | 0.045368 |
| 44.000 | 0.046423 |
| 45.000 | 0.047478 |
| 46.000 | 0.048533 |
| 47.000 | 0.049588 |
| 48.000 | 0.050643 |
| 49.000 | 0.051698 |
| 50.000 | 0.052753 |
| 51.000 | 0.053808 |
| 52.000 | 0.054863 |
| 53.000 | 0.055918 |
| 54.000 | 0.056973 |
| 55.000 | 0.058028 |
| 56.000 | 0.059083 |
| 57.000 | 0.060138 |
| 58.000 | 0.061193 |
| 59.000 | 0.062249 |
| BTU | MJ |
|---|---|
| 60.000 | 0.063304 |
| 61.000 | 0.064359 |
| 62.000 | 0.065414 |
| 63.000 | 0.066469 |
| 64.000 | 0.067524 |
| 65.000 | 0.068579 |
| 66.000 | 0.069634 |
| 67.000 | 0.070689 |
| 68.000 | 0.071744 |
| 69.000 | 0.072799 |
| 70.000 | 0.073854 |
| 71.000 | 0.074909 |
| 72.000 | 0.075964 |
| 73.000 | 0.077019 |
| 74.000 | 0.078074 |
| 75.000 | 0.079130 |
| 76.000 | 0.080185 |
| 77.000 | 0.081240 |
| 78.000 | 0.082295 |
| 79.000 | 0.083350 |
British Thermal Units to Megajoules Conversion
Converting British Thermal Units (BTU) to Megajoules (MJ) is a common energy and power conversion. 1 BTU equals 0.001055 MJ. For example, 100 BTU is equal to 0.105506 MJ.
Quick Mental Math: British Thermal Units to Megajoules
10 british thermal units is 0.01055 megajoules, so use that as the mental anchor.
Why is converting British Thermal Units to Megajoules tricky?
british thermal units to megajoules mixes thermal units with rate units, so people often miss whether the value is energy or energy per hour.
Quick Reference Values
1 BTU = 0.001055 MJ. 5 BTU = 0.005275 MJ. 10 BTU = 0.010551 MJ. 25 BTU = 0.026377 MJ. 50 BTU = 0.052753 MJ. 100 BTU = 0.105506 MJ.
What is British Thermal Units?
British Thermal Units (BTU) is a unit of energy and power. The British Thermal Unit (BTU) measures energy and is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. One BTU equals approximately 1055.06 joules in the International System of Units (SI). This unit is standardized for heating and cooling system capacities and energy content calculations [nist-sp-811]. The BTU originated in the mid-19th century during the industrial revolution to quantify heat energy for steam engines and heating systems. It was standardized by engineering societies to unify thermal energy measurements in the United Kingdom and the United States [nist-sp-811]. BTU remains widely used in the United States, the United Kingdom, and Canada for HVAC system ratings and energy content in fuels. It is recognized by industry standards and energy regulations but is less common in countries using the SI system exclusively [nist-sp-811].
What is Megajoules?
Megajoules (MJ) is a unit of energy and power. A megajoule equals one million joules, the SI unit of energy, defined as the work done when applying a force of one newton over one meter. One MJ equals 1,000,000 J exactly. It is used to quantify large energy amounts in scientific, industrial, and engineering contexts [bipm-si-brochure]. The joule was named after James Prescott Joule in the 19th century, honoring his work on energy. The megajoule as a multiple of the joule was standardized with the SI system established by BIPM in 1960 to handle large-scale energy measurements [bipm-si-brochure]. Megajoules are widely used internationally in energy production, mechanical work quantification, and fuel energy content. Industries such as electricity generation, chemical manufacturing, and automotive engineering rely on MJ for reporting energy values [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: british thermal unit, btu unit, british therm unit, btu energy, british thermals unit, mega joules, megajoule, mega-joules, megajoules energy. All of these refer to the British Thermal Units to Megajoules conversion.