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Megacalories to Calories Converter

Convert megacalories (Mcal) to calories (thermochemical) (cal), 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
1,000,000 cal
joules (watt-seconds)
4,184,000 J
kilojoules
4,184 kJ
megajoules
4.184 MJ
gigajoules
0.004184 GJ
kilocalories (food Calories)
1,000 kcal
watt-hours
1,162.22222222 Wh
kilowatt-hours
1.16222222222 kWh
megawatt-hours
0.00116222222222 MWh
British thermal units (IT)
3,965.66683139 Btu
million Btu
0.00396566683139 MMBtu
therms (100,000 Btu)
0.0396566683139 thm
quads (10¹⁵ Btu)
3.96566683139 × 10⁻¹² quad
electronvolts
2.61144739675 × 10²⁵ eV
kiloelectronvolts
2.61144739675 × 10²² keV
megaelectronvolts
2.61144739675 × 10¹⁹ MeV

1 Mcal = 1,000,000 cal

Show the working
  1. 1 Mcal = 1000000 cal
  2. 1 × 1000000 = 1000000 cal

How to convert megacalories to calories

1 Mcal = 1,000,000 cal, so multiply by 1,000,000 to go from megacalories to calories (thermochemical). Going the other way, 1 cal = 1 × 10⁻⁶ Mcal.

cal = Mcal × 1,000,000
Mcal = cal × 1

Worked example:

1 Mcal = 1000000 cal
5 × 1000000 = 5000000 cal

Megacalories to calories table

MegacaloriesCalories
1 Mcal1,000,000 cal
2 Mcal2,000,000 cal
3 Mcal3,000,000 cal
4 Mcal4,000,000 cal
5 Mcal5,000,000 cal
6 Mcal6,000,000 cal
7 Mcal7,000,000 cal
8 Mcal8,000,000 cal
9 Mcal9,000,000 cal
10 Mcal10,000,000 cal
15 Mcal15,000,000 cal
20 Mcal20,000,000 cal
25 Mcal25,000,000 cal
30 Mcal30,000,000 cal
40 Mcal40,000,000 cal
50 Mcal50,000,000 cal
75 Mcal75,000,000 cal
100 Mcal100,000,000 cal
250 Mcal250,000,000 cal
500 Mcal500,000,000 cal
1000 Mcal1,000,000,000 cal

About the units

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

Formula version 0.1.0Reviewed