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Kilocalories to Megacalories Converter

Convert kilocalories (food Calories) (kcal) 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
0.001 Mcal
joules (watt-seconds)
4,184 J
kilojoules
4.184 kJ
megajoules
0.004184 MJ
gigajoules
4.184 × 10⁻⁶ GJ
calories (thermochemical)
1,000 cal
watt-hours
1.16222222222 Wh
kilowatt-hours
0.00116222222222 kWh
megawatt-hours
1.16222222222 × 10⁻⁶ MWh
British thermal units (IT)
3.96566683139 Btu
million Btu
3.96566683139 × 10⁻⁶ MMBtu
therms (100,000 Btu)
3.96566683139 × 10⁻⁵ thm
quads (10¹⁵ Btu)
3.96566683139 × 10⁻¹⁵ quad
electronvolts
2.61144739675 × 10²² eV
kiloelectronvolts
2.61144739675 × 10¹⁹ keV
megaelectronvolts
2.61144739675 × 10¹⁶ MeV

1 kcal = 0.001 Mcal

Show the working
  1. 1 kcal = 0.001 Mcal
  2. 1 × 0.001 = 0.001 Mcal

How to convert kilocalories to megacalories

1 kcal = 0.001 Mcal, so multiply by 0.001 to go from kilocalories (food Calories) to megacalories. Going the other way, 1 Mcal = 1,000 kcal.

Mcal = kcal × 0.001
kcal = Mcal × 1,000

Worked example:

1 kcal = 0.001 Mcal
5 × 0.001 = 0.005 Mcal

Kilocalories to megacalories table

KilocaloriesMegacalories
1 kcal0.001 Mcal
2 kcal0.002 Mcal
3 kcal0.003 Mcal
4 kcal0.004 Mcal
5 kcal0.005 Mcal
6 kcal0.006 Mcal
7 kcal0.007 Mcal
8 kcal0.008 Mcal
9 kcal0.009 Mcal
10 kcal0.01 Mcal
15 kcal0.015 Mcal
20 kcal0.02 Mcal
25 kcal0.025 Mcal
30 kcal0.03 Mcal
40 kcal0.04 Mcal
50 kcal0.05 Mcal
75 kcal0.075 Mcal
100 kcal0.1 Mcal
250 kcal0.25 Mcal
500 kcal0.5 Mcal
1000 kcal1 Mcal

About the units

Kilocalories (kcal)
Kilocalories (food Calories), a specialised 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