MJ to kcal Converter

How to convert megajoules to kilocalories

Formulakcal = MJ × 239.0057361

Because one kilocalorie equals 0.004184 megajoules, you can also divide: kcal = MJ ÷ 0.004184.

A megajoule is larger than a kilocalorie: one megajoule contains 239.0057361 kilocalories.

Worked examples

1 megajoule1 MJ × 239.0057361 = 239.0057361 kcal
5 megajoules5 MJ × 239.0057361 = 1,195.028681 kcal
10 megajoules10 MJ × 239.0057361 = 2,390.057361 kcal
20 megajoules20 MJ × 239.0057361 = 4,780.114723 kcal
100 megajoules100 MJ × 239.0057361 = 23,900.57361 kcal

Megajoules to kilocalories conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Megajoules to kilocalories: 0.1–10 MJ
Megajoules (MJ)	Kilocalories (kcal)
0.1 MJ	23.900574 kcal
0.25 MJ	59.751434 kcal
0.5 MJ	119.50287 kcal
1 MJ	239.00574 kcal
2 MJ	478.01147 kcal
3 MJ	717.01721 kcal
4 MJ	956.02294 kcal
5 MJ	1,195.0287 kcal
6 MJ	1,434.0344 kcal
7 MJ	1,673.0402 kcal
8 MJ	1,912.0459 kcal
9 MJ	2,151.0516 kcal
10 MJ	2,390.0574 kcal

Megajoules to kilocalories: 12–1,000 MJ
Megajoules (MJ)	Kilocalories (kcal)
12 MJ	2,868.0688 kcal
15 MJ	3,585.086 kcal
20 MJ	4,780.1147 kcal
25 MJ	5,975.1434 kcal
30 MJ	7,170.1721 kcal
40 MJ	9,560.2294 kcal
50 MJ	11,950.287 kcal
75 MJ	17,925.43 kcal
100 MJ	23,900.574 kcal
250 MJ	59,751.434 kcal
500 MJ	119,502.87 kcal
1,000 MJ	239,005.74 kcal

About the units

Megajoule (MJ)

The megajoule (MJ) is a unit of energy in the International System of Units (SI). One megajoule equals 1,000,000 joules (J).

Kilocalorie (kcal)

One thousand small calories, or 4,184 J. The “Calories” on nutrition labels are kilocalories.

Frequently asked questions

How many kilocalories are in one megajoule?

There are 239.0057361 kilocalories in one megajoule, and this value is exact by definition.

How do I convert megajoules to kilocalories?

Multiply the number of megajoules by 239.0057361. For example, 10 MJ × 239.0057361 = 2,390.057361 kcal.

How many megajoules are in one kilocalorie?

One kilocalorie equals 0.004184 megajoules. That is the reverse factor, 1 ÷ 239.0057361.

What is 10 megajoules in kilocalories?

10 MJ = 2,390.057361 kcal.

Is this MJ to kcal converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.