Kilocalories to Joules Converter

Engineering

Joules, calories, kilowatt-hours and more.

How to convert Kilocalories to Joules

Multiply the kilocalories value by 4,184: 1 kcal = 4,184 J. Going the other way, 1 J = 0.000239006 kcal, so divide by 4,184 or use the Joules to Kilocalories converter.

About these units

Kilocalories (kcal)

A kilocalorie is 1,000 calories, or 4,184 joules. It is the Calorie written with a capital C on food labels and in diet guidance.

Joules (J)

The joule is the SI unit of energy: the work done by a force of one newton over one meter. Lifting a small apple one meter takes about one joule.

Kilocalories to Joules conversion table

Kilocalories (kcal)Joules (J)
1 kcal4,184 J
2 kcal8,368 J
3 kcal12,552 J
4 kcal16,736 J
5 kcal20,920 J
10 kcal41,840 J
20 kcal83,680 J
25 kcal104,600 J
50 kcal209,200 J
100 kcal418,400 J
500 kcal2.092e+6 J
1,000 kcal4.184e+6 J

More kilocalories conversions