How many kilojoules is 1 calorie?

1 calorie equals 4.184 kJ, about 42% of an AA battery.

Kilojoules to calories (kJ to kcal)

To convert kilojoules to calories (kJ to kcal), multiply by 0.239005736. 1 kilojoule equals 0.239005736 kcal, about 10% of an AA battery.

1 kilojoule equals

0.239005736kcal

1 kJ = 0.239005736 kcal · 1 kcal = 4.184 kJ

Show the working

1. Convert to the base unit (MJ):
1 kJ × 1,000 = 1,000 MJ

2. Convert from MJ to kcal:
1,000 MJ ÷ 4,184 = 0.23901 kcal

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