Energy
Joule to Calories
Convert joule to calories instantly.
About this conversion
Joule (J) er SI-grundenheden for energi og bruges i fysik, kemi og teknik. A calorie (cal) is the energy needed to raise 1 g of water by 1°C. 1 cal = 4.184 J. Use the converter above to quickly go from joule to calories.
How to use
Enter a value in the joule field and instantly see the result in calories. Click the swap button to reverse the conversion.
Manual calculation
1 joule = 0.23901 calories. Example: 10 J = 2.3901 cal.
Frequently asked questions
How many calories are in 1 joule?
1 Joule equals 0.23901 calories.
When do you use calories?
A calorie (cal) is the energy needed to raise 1 g of water by 1°C. 1 cal = 4.184 J.