Calories to Joules Converter

Convert calories (cal) to joules (J). 1 calorie = 4.184 joules. Used in chemistry, physics, and nutrition.

Energy Converter

Conversion Formula:

Joules = Calories × 4.184
Calories = Joules ÷ 4.184

Conversion Table
CaloriesJoules
1 cal4.184 J
5 cal20.920 J
10 cal41.840 J
25 cal104.600 J
50 cal209.200 J
100 cal418.400 J
200 cal836.800 J
500 cal2092.000 J
1000 cal4184.000 J
2000 cal8368.000 J
5000 cal20920.000 J
10000 cal41840.000 J
Frequently Asked Questions

How many joules in a calorie?

1 calorie = 4.184 joules exactly.

What is a food Calorie in joules?

1 food Calorie (kcal) = 4,184 joules = 4.184 kJ.

How do you convert calories to joules?

Multiply by 4.184.

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