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Calories to Million Btu Converter

Convert calories (thermochemical) (cal) to million Btu (MMBtu), 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
3.96566683139 × 10⁻⁹ MMBtu
joules (watt-seconds)
4.184 J
kilojoules
0.004184 kJ
megajoules
4.184 × 10⁻⁶ MJ
gigajoules
4.184 × 10⁻⁹ GJ
kilocalories (food Calories)
0.001 kcal
megacalories
1 × 10⁻⁶ Mcal
watt-hours
0.00116222222222 Wh
kilowatt-hours
1.16222222222 × 10⁻⁶ kWh
megawatt-hours
1.16222222222 × 10⁻⁹ MWh
British thermal units (IT)
0.00396566683139 Btu
therms (100,000 Btu)
3.96566683139 × 10⁻⁸ thm
quads (10¹⁵ Btu)
3.96566683139 × 10⁻¹⁸ quad
electronvolts
2.61144739675 × 10¹⁹ eV
kiloelectronvolts
2.61144739675 × 10¹⁶ keV
megaelectronvolts
26,114,473,967,500 MeV

1 cal = 3.96566683139 × 10⁻⁹ MMBtu

Show the working
  1. 1 cal = 3.96566683139e-9 MMBtu
  2. 1 × 3.96566683139e-9 = 3.96566683139e-9 MMBtu

How to convert calories to million btu

1 cal = 3.96566683139 × 10⁻⁹ MMBtu, so multiply by 3.96566683139 to go from calories (thermochemical) to million Btu. Going the other way, 1 MMBtu = 252,164,400.722 cal.

MMBtu = cal × 3.96566683139
cal = MMBtu × 252,164,400.722

Worked example:

1 cal = 3.96566683139e-9 MMBtu
5 × 3.96566683139e-9 = 1.9828334157e-8 MMBtu

Calories to million btu table

CaloriesMillion Btu
1 cal3.96566683139 × 10⁻⁹ MMBtu
2 cal7.93133366278 × 10⁻⁹ MMBtu
3 cal1.18970004942 × 10⁻⁸ MMBtu
4 cal1.58626673256 × 10⁻⁸ MMBtu
5 cal1.9828334157 × 10⁻⁸ MMBtu
6 cal2.37940009883 × 10⁻⁸ MMBtu
7 cal2.77596678197 × 10⁻⁸ MMBtu
8 cal3.17253346511 × 10⁻⁸ MMBtu
9 cal3.56910014825 × 10⁻⁸ MMBtu
10 cal3.96566683139 × 10⁻⁸ MMBtu
15 cal5.94850024709 × 10⁻⁸ MMBtu
20 cal7.93133366278 × 10⁻⁸ MMBtu
25 cal9.91416707848 × 10⁻⁸ MMBtu
30 cal1.18970004942 × 10⁻⁷ MMBtu
40 cal1.58626673256 × 10⁻⁷ MMBtu
50 cal1.9828334157 × 10⁻⁷ MMBtu
75 cal2.97425012354 × 10⁻⁷ MMBtu
100 cal3.96566683139 × 10⁻⁷ MMBtu
250 cal9.91416707848 × 10⁻⁷ MMBtu
500 cal1.9828334157 × 10⁻⁶ MMBtu
1000 cal3.96566683139 × 10⁻⁶ MMBtu

About the units

Calories (cal)
Calories (thermochemical), a specialised unit. The thermochemical calorie, 4.184 J, used on US food labels as 1 Calorie = 1 kilocalorie. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
Million Btu (MMBtu)
Million Btu, a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed