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Kilocalories to Kilojoules

Convert kilocalories to kilojoules (kcal to kJ) instantly. 1 kcal = 4.184 kJ. Includes the formula and a conversion table.

How to convert kilocalories to kilojoules

One kilocalorie equals 4.184 kilojoules, so multiply the number of kilocalories by 4.184. For example, 5 kcal × 4.184 = 20.92 kJ.

Kilocalories to kilojoules table

Kilocalories (kcal)Kilojoules (kJ)
0.1 kcal0.4184 kJ
0.5 kcal2.092 kJ
1 kcal4.184 kJ
2 kcal8.368 kJ
3 kcal12.552 kJ
4 kcal16.736 kJ
5 kcal20.92 kJ
6 kcal25.104 kJ
7 kcal29.288 kJ
8 kcal33.472 kJ
9 kcal37.656 kJ
10 kcal41.84 kJ
15 kcal62.76 kJ
20 kcal83.68 kJ
25 kcal104.6 kJ
30 kcal125.52 kJ
50 kcal209.2 kJ
75 kcal313.8 kJ
100 kcal418.4 kJ
250 kcal1,046 kJ
500 kcal2,092 kJ
1,000 kcal4,184 kJ

Need it the other way? Use the kilojoules to kilocalories converter, or the unit converter for any other energy unit.

Questions

How many kilojoules are in a kilocalorie?

1 kcal = 4.184 kJ.

How many kilocalories are in a kilojoule?

1 kJ = 0.2390057361 kcal.

What is 10 kcal in kJ?

10 kcal = 41.84 kJ.