Kilocalories to Kilojoules Converter

1 kilocalorie = 4.184 kilojoules

1 kilojoule = 0.2390057 kilocalories

100 kcal = 418.4 kJ

How to convert kilocalories to kilojoules

To convert kilocalories to kilojoules, multiply the value in kilocalories by 4.184.

kJ = kcal × 4.184

Example: 100 kcal × 4.184 = 418.4 kJ

Kilocalories to Kilojoules conversion table

Kilocalorie (kcal)Kilojoule (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
12 kcal50.208 kJ
15 kcal62.76 kJ
20 kcal83.68 kJ
25 kcal104.6 kJ
30 kcal125.52 kJ
40 kcal167.36 kJ
50 kcal209.2 kJ
60 kcal251.04 kJ
70 kcal292.88 kJ
75 kcal313.8 kJ
80 kcal334.72 kJ
90 kcal376.56 kJ
100 kcal418.4 kJ
150 kcal627.6 kJ
200 kcal836.8 kJ
250 kcal1,046 kJ
500 kcal2,092 kJ
1,000 kcal4,184 kJ

About these units

Kilocalorie (kcal)

The kilocalorie (kcal) is a unit of energy. 1 kilocalorie equals 4,184 joules. This value is exact by definition.

Kilojoule (kJ)

The kilojoule (kJ) is a unit of energy in the International System of Units (SI). 1 kilojoule equals 1,000 joules. This value is exact by definition.

Frequently asked questions

What is 1 kilocalorie in kilojoules?

1 kilocalorie equals 4.184 kilojoules.

How do I convert kilocalories to kilojoules?

To convert kilocalories to kilojoules, multiply the value in kilocalories by 4.184. Example: 100 kcal × 4.184 = 418.4 kJ

What is 100 kcal in kilojoules?

100 kilocalories equals 418.4 kilojoules.