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Megajoules to British Thermal Units Converter

Convert megajoules (MJ) to British thermal units (IT) (Btu), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
947.817120313 Btu
joules (watt-seconds)
1,000,000 J
kilojoules
1,000 kJ
gigajoules
0.001 GJ
calories (thermochemical)
239,005.736138 cal
kilocalories (food Calories)
239.005736138 kcal
megacalories
0.239005736138 Mcal
watt-hours
277.777777778 Wh
kilowatt-hours
0.277777777778 kWh
megawatt-hours
0.000277777777778 MWh
million Btu
0.000947817120313 MMBtu
therms (100,000 Btu)
0.00947817120313 thm
quads (10¹⁵ Btu)
9.47817120313 × 10⁻¹³ quad
electronvolts
6.24150907446 × 10²⁴ eV
kiloelectronvolts
6.24150907446 × 10²¹ keV
megaelectronvolts
6.24150907446 × 10¹⁸ MeV

1 MJ = 947.817120313 Btu

Show the working
  1. 1 MJ = 947.817120313 Btu
  2. 1 × 947.817120313 = 947.817120313 Btu

How to convert megajoules to british thermal units

1 MJ = 947.817120313 Btu, so multiply by 947.817120313 to go from megajoules to British thermal units (IT). Going the other way, 1 Btu = 0.00105505585262 MJ.

Btu = MJ × 947.817120313
MJ = Btu × 0.00105505585262

Worked example:

1 MJ = 947.817120313 Btu
5 × 947.817120313 = 4739.08560157 Btu

Megajoules to british thermal units table

MegajoulesBritish Thermal Units
1 MJ947.817120313 Btu
2 MJ1,895.63424063 Btu
3 MJ2,843.45136094 Btu
4 MJ3,791.26848125 Btu
5 MJ4,739.08560157 Btu
6 MJ5,686.90272188 Btu
7 MJ6,634.71984219 Btu
8 MJ7,582.53696251 Btu
9 MJ8,530.35408282 Btu
10 MJ9,478.17120313 Btu
15 MJ14,217.2568047 Btu
20 MJ18,956.3424063 Btu
25 MJ23,695.4280078 Btu
30 MJ28,434.5136094 Btu
40 MJ37,912.6848125 Btu
50 MJ47,390.8560157 Btu
75 MJ71,086.2840235 Btu
100 MJ94,781.7120313 Btu
250 MJ236,954.280078 Btu
500 MJ473,908.560157 Btu
1000 MJ947,817.120313 Btu

About the units

British Thermal Units (Btu)
British thermal units (IT), a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed