Convert exajoule to calorie

You are currently converting energy units from exajoule to calorie

Starting unit
Destination unit
2.388458966275⋅10+17 cal
Conversion base: 1 EJ = 2.388458966275E+17 cal
1 cal = 4.1868E-18 EJ

Calories and kilocalories

The calorie of food labels is really the kilocalorie: 1 kcal = 1,000 cal = 4.1868 kJ, the heat that warms a kilogram of water by one degree. Nutrition labels in the EU must give both kJ and kcal, the US gives 'Calories' with a capital C meaning kcal, and the adult reference intake is 2,000 kcal, about 8,400 kJ. A slice of bread is around 80 kcal, an hour's brisk walk burns about 300.
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