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Million Btu to Megacalories Converter

Convert million Btu (MMBtu) to megacalories (Mcal), 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
252.164400722 Mcal
joules (watt-seconds)
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
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 = 252.164400722 Mcal

Show the working
  1. 1 MMBtu = 252.164400722 Mcal
  2. 1 × 252.164400722 = 252.164400722 Mcal

How to convert million btu to megacalories

1 MMBtu = 252.164400722 Mcal, so multiply by 252.164400722 to go from million Btu to megacalories. Going the other way, 1 Mcal = 0.00396566683139 MMBtu.

Mcal = MMBtu × 252.164400722
MMBtu = Mcal × 0.00396566683139

Worked example:

1 MMBtu = 252.164400722 Mcal
5 × 252.164400722 = 1260.82200361 Mcal

Million Btu to megacalories table

Million BtuMegacalories
1 MMBtu252.164400722 Mcal
2 MMBtu504.328801444 Mcal
3 MMBtu756.493202165 Mcal
4 MMBtu1,008.65760289 Mcal
5 MMBtu1,260.82200361 Mcal
6 MMBtu1,512.98640433 Mcal
7 MMBtu1,765.15080505 Mcal
8 MMBtu2,017.31520577 Mcal
9 MMBtu2,269.4796065 Mcal
10 MMBtu2,521.64400722 Mcal
15 MMBtu3,782.46601083 Mcal
20 MMBtu5,043.28801444 Mcal
25 MMBtu6,304.11001804 Mcal
30 MMBtu7,564.93202165 Mcal
40 MMBtu10,086.5760289 Mcal
50 MMBtu12,608.2200361 Mcal
75 MMBtu18,912.3300541 Mcal
100 MMBtu25,216.4400722 Mcal
250 MMBtu63,041.1001804 Mcal
500 MMBtu126,082.200361 Mcal
1000 MMBtu252,164.400722 Mcal

About the units

Million Btu (MMBtu)
Million Btu, a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
Megacalories (Mcal)
Megacalories, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed