How many calories is 1 kilojoule?

1 kilojoule equals 0.239005736 kcal, about 10% of an AA battery.

Calories to kilojoules (kcal to kJ)

To convert calories to kilojoules (kcal to kJ), multiply by 4.184. 1 calorie equals 4.184 kJ, about 42% of an AA battery.

1 calorie equals

4.184kJ

1 kcal = 4.184 kJ · 1 kJ = 0.239005736 kcal

Show the working

1. Convert to the base unit (MJ):
1 kcal × 4,184 = 4,184 MJ

2. Convert from MJ to kJ:
4,184 MJ ÷ 1,000 = 4.184 kJ

How many kilojoules is 1 calorie?: 1 calorie equals 4.184 kJ, about 42% of an AA battery.
How many calories is 1 kilojoule?: 1 kilojoule equals 0.239005736 kcal, about 10% of an AA battery.