kJ to Cal (Kilojoules to Calories) Converter

Change kJ to Cal with this fast kJ to calories converter. Simply adjust the slider or type a value to convert kilojoules to calories (kcal).

The conversion factor between a kilojoule (kJ) and a calorie (also called kilocalorie, kcal, or Cal) is 0.239, because each calorie contains 4.184 kilojoules. To do the reverse operation (convert calories to kilojoules), use the calculator below this one:

Convert Calories to kilojoules (Cal to kJ)

You can convert calories to kilojoules with the tool below, it is the reverse calculation of the kJ to Cal converter. Type in or slide to your required calorie amount, and the calculator will tell you how many kilojoules it is worth (kcal value multiplied by 4.184 equals kilojoule value):

Use this quick reference table to convert kj to calories and vice-versa: