J to Calories Converter
Convert joules to calories instantly. Free online calculator.
Quick reference:
1 J = 4.184 cal
Tip: You can swap the direction to convert cal → J.
About Joules and Calories
Joules (J) is a unit of length in the metric system. It is commonly used for everyday measurements such as body height, fabric, furniture, and small distances.
Calories (cal) is a unit of length in the imperial/US customary system. It is widely used in the United States and in many industries (construction, screens, tools) where inches are standard.
Conversion formulas
- 1 J = 4.184 cal
- 1 cal = 0.2390057361 J
Tip: You can swap the direction if you want to convert cal → J.