Kilocalorie to Kilojoule Converter

A kilocalorie (kcal) is the amount of heat energy needed to raise the temperature of 1 kilogram of water by 1°C. It's commonly used in nutrition as a "food calorie".

A kilojoule (kJ) is the metric system's unit of energy, equal to 1,000 joules. One kilocalorie equals 4.184 kilojoules.