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Convert kilocalorie to megajoule

Here you can quickly calculate how many megajoule fit in one kilocalorie.
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  • 1 kcal = 0.004184 MJ
  • 1 MJ = 239.005736 kcal

Example: kilocalorie to megajoule

  • 1 kilocalorie = 0.004184 megajoule

Kilocalorie to megajoule conversion table

kilocalorie megajoule
1 0.004184
2 0.008368
5 0.02092
10 0.04184
20 0.08368
50 0.2092
100 0.4184

Kilocalorie to megajoule formula

To convert kilocalorie to megajoule, multiply by 0.004184.

1 kcal = 0.004184 MJ
Example: 1 kilocalorie = 0.004184 megajoule

Common energy conversion mistakes

  • Food 'calories' are actually kilocalories: 1 kcal = 1,000 cal. A '500-calorie' meal therefore contains 500 kcal, half a million small calories. Labels write the same thing as 'kcal' or as 'Cal' with a capital C.
  • The relationship is exact: 1 kWh = 3.6 MJ (3,600 kJ, because an hour has 3,600 seconds). The common slip is dividing when you should multiply: 10 kWh is 36 MJ, not 2.8. Remember the direction: kWh → MJ means times 3.6.

Quick kilocalorie and megajoule conversion quiz

Score: 0

11.2 kilocalorie equals 0.0234 megajoule.

Correct answer: 11.2 kilocalorie = 0.0469 megajoule.

3 kilocalorie equals 0.0126 megajoule.

Correct answer: 3 kilocalorie = 0.0126 megajoule.

20.3 kilocalorie equals 0.051 megajoule.

Correct answer: 20.3 kilocalorie = 0.0849 megajoule.

20.2 kilocalorie equals 0.0845 megajoule.

Correct answer: 20.2 kilocalorie = 0.0845 megajoule.

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