Convert British Thermal Units to Megajoules

Enter the energy in british thermal units below to get the value converted to megajoules.

Results in Megajoules:
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1 BTU = 0.001055 MJ

How to Convert British Thermal Units to Megajoules

To convert a british thermal unit measurement to a megajoule measurement, multiply the energy by the conversion ratio. One british thermal unit is equal to 0.001055 megajoules, so use this simple formula to convert:

megajoules = british thermal units × 0.001055

The energy in megajoules is equal to the british thermal units multiplied by 0.001055.

For example, here's how to convert 5 british thermal units to megajoules using the formula above.
5 BTU = (5 × 0.001055) = 0.005275 MJ

British thermal units and megajoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

British Thermal Units

British thermal units are a measure of heat energy. Specifically, one british thermal unit is equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. They are often used as a way to rate the energy heat producing appliances such furnaces, and to price heating fuels such as natural gas.

The british thermal unit is a US customary unit of energy. British thermal units can be abbreviated as BTU, for example 1 british thermal unit can be written as 1 BTU.


One megajoule is equal to 1,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The megajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "mega" is the prefix for 109. Megajoules can be abbreviated as MJ, for example 1 megajoule can be written as 1 MJ.

British Thermal Unit Measurements and Equivalent Megajoule Conversions

Common british thermal unit values converted to the equivalent megajoule value
British Thermal Units Megajoules
1 BTU 0.001055 MJ
2 BTU 0.00211 MJ
3 BTU 0.003165 MJ
4 BTU 0.00422 MJ
5 BTU 0.005275 MJ
6 BTU 0.00633 MJ
7 BTU 0.007385 MJ
8 BTU 0.00844 MJ
9 BTU 0.009496 MJ
10 BTU 0.010551 MJ
11 BTU 0.011606 MJ
12 BTU 0.012661 MJ
13 BTU 0.013716 MJ
14 BTU 0.014771 MJ
15 BTU 0.015826 MJ
16 BTU 0.016881 MJ
17 BTU 0.017936 MJ
18 BTU 0.018991 MJ
19 BTU 0.020046 MJ
20 BTU 0.021101 MJ
21 BTU 0.022156 MJ
22 BTU 0.023211 MJ
23 BTU 0.024266 MJ
24 BTU 0.025321 MJ
25 BTU 0.026376 MJ
26 BTU 0.027431 MJ
27 BTU 0.028487 MJ
28 BTU 0.029542 MJ
29 BTU 0.030597 MJ
30 BTU 0.031652 MJ
31 BTU 0.032707 MJ
32 BTU 0.033762 MJ
33 BTU 0.034817 MJ
34 BTU 0.035872 MJ
35 BTU 0.036927 MJ
36 BTU 0.037982 MJ
37 BTU 0.039037 MJ
38 BTU 0.040092 MJ
39 BTU 0.041147 MJ
40 BTU 0.042202 MJ

More British Thermal Unit Energy Conversions

Convert to Joules
1 BTU is equal to 1,055.06 joules
Convert to Kilojoules
1 BTU is equal to 1.055056 kilojoules
Convert to Gigajoules
1 BTU is equal to 1.0551E-6 gigajoules
Convert to Calories
1 BTU is equal to 252.164401 calories
Convert to Kilocalories
1 BTU is equal to 0.252164 kilocalories
Convert to Megacalories
1 BTU is equal to 0.000252 megacalories
Watts x Time
Convert to Watt-hours
1 BTU is equal to 0.293071 watt-hours
Convert to Kilowatt-hours
1 BTU is equal to 0.000293 kilowatt-hours
Convert to Megawatt-hours
1 BTU is equal to 2.9307E-7 megawatt-hours
Convert to Watt-seconds
1 BTU is equal to 1,055.06 watt-seconds
Thermal Units
Convert to Million BTU
1 BTU is equal to 1.0E-6 million BTU
Convert to Therms
1 BTU is equal to 1.0E-5 therms
Convert to Quads
1 BTU is equal to 1.0E-15 quads
Convert to Electronvolts
1 BTU is equal to 6,585,100,000,000,000,131,072 electronvolts
Convert to Kiloelectronvolts
1 BTU is equal to 6,585,100,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts
1 BTU is equal to 6,585,100,000,000,000 megaelectronvolts