Megajoules to Kilocalories (food Calories)

Type a value in Megajoules and get the result in Kilocalories (food Calories), calculated exactly.

1 MJ ≈ 239.0057361 kcal Energy converter

From

Precision

Exact factorRounded for display to about 10 significant digits.

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kcal = MJ ÷ 0.004184

To convert Megajoules to Kilocalories (food Calories), divide the value by 0.004184.

This factor is exact by definition.

Megajoules to Kilocalories (food Calories)
Megajoules (MJ)	Kilocalories (food Calories) (kcal)
1	≈ 239.0057
2	≈ 478.0115
3	≈ 717.0172
4	≈ 956.0229
5	≈ 1,195.029
6	≈ 1,434.034
7	≈ 1,673.04
8	≈ 1,912.046
9	≈ 2,151.052
10	≈ 2,390.057
15	≈ 3,585.086
20	≈ 4,780.115
25	≈ 5,975.143
30	≈ 7,170.172
40	≈ 9,560.229
50	≈ 11,950.29
60	≈ 14,340.34
70	≈ 16,730.4
75	≈ 17,925.43
80	≈ 19,120.46
90	≈ 21,510.52
100	≈ 23,900.57

Values marked ≈ are rounded; the rest are exact.

Reverse table: Kilocalories (food Calories) to Megajoules

Kilocalories (food Calories) to Megajoules
Kilocalories (food Calories) (kcal)	Megajoules (MJ)
1	0.004184
2	0.008368
3	0.012552
4	0.016736
5	0.02092
6	0.025104
7	0.029288
8	0.033472
9	0.037656
10	0.04184
15	0.06276
20	0.08368
25	0.1046
30	0.12552
40	0.16736
50	0.2092
60	0.25104
70	0.29288
75	0.3138
80	0.33472
90	0.37656
100	0.4184

Megajoules MJ: Exactly 1 000 000 joules.
Kilocalories (food Calories) kcal: Exactly 4184 joules; the "Calorie" on food labels.

Megajoules to Kilocalories (food Calories): what is the conversion factor?

One MJ is ≈ 239.0057361 kcal.

How do I convert Megajoules to Kilocalories (food Calories)?

Use the formula above. For example, 100 MJ = ≈ 23,900.57361 kcal.

Is the conversion exact?

Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.

Factors checked 19 October 2026.