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Million Btu to Joules Converter

Convert million Btu (MMBtu) to joules (watt-seconds) (J), 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
1,055,055,852.62 J
kilojoules
1,055,055.85262 kJ
megajoules
1,055.05585262 MJ
gigajoules
1.05505585262 GJ
calories (thermochemical)
252,164,400.722 cal
kilocalories (food Calories)
252,164.400722 kcal
megacalories
252.164400722 Mcal
watt-hours
293,071.070172 Wh
kilowatt-hours
293.071070172 kWh
megawatt-hours
0.293071070172 MWh
British thermal units (IT)
1,000,000 Btu
therms (100,000 Btu)
10 thm
quads (10¹⁵ Btu)
1 × 10⁻⁹ quad
electronvolts
6.58514067819 × 10²⁷ eV
kiloelectronvolts
6.58514067819 × 10²⁴ keV
megaelectronvolts
6.58514067819 × 10²¹ MeV

1 MMBtu = 1,055,055,852.62 J

Show the working
  1. 1 MMBtu = 1055055852.62 J
  2. 1 × 1055055852.62 = 1055055852.62 J

How to convert million btu to joules

1 MMBtu = 1,055,055,852.62 J, so multiply by 1,055,055,852.62 to go from million Btu to joules (watt-seconds). Going the other way, 1 J = 9.47817120313 × 10⁻¹⁰ MMBtu.

J = MMBtu × 1,055,055,852.62
MMBtu = J × 9.47817120313

Worked example:

1 MMBtu = 1055055852.62 J
5 × 1055055852.62 = 5275279263.1 J

Million Btu to joules table

Million BtuJoules
1 MMBtu1,055,055,852.62 J
2 MMBtu2,110,111,705.24 J
3 MMBtu3,165,167,557.86 J
4 MMBtu4,220,223,410.48 J
5 MMBtu5,275,279,263.1 J
6 MMBtu6,330,335,115.72 J
7 MMBtu7,385,390,968.34 J
8 MMBtu8,440,446,820.96 J
9 MMBtu9,495,502,673.58 J
10 MMBtu10,550,558,526.2 J
15 MMBtu15,825,837,789.3 J
20 MMBtu21,101,117,052.4 J
25 MMBtu26,376,396,315.5 J
30 MMBtu31,651,675,578.6 J
40 MMBtu42,202,234,104.8 J
50 MMBtu52,752,792,631 J
75 MMBtu79,129,188,946.5 J
100 MMBtu105,505,585,262 J
250 MMBtu263,763,963,155 J
500 MMBtu527,527,926,310 J
1000 MMBtu1,055,055,852,620 J

About the units

Million Btu (MMBtu)
Million Btu, a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
Joules (J)
Joules (watt-seconds), a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).

Formula version 0.1.0Reviewed