How do I convert joules to calories?

Divide the number of joules by 4.184. For example, 5 J = 1.19503 cal.

How many calories are in one joule?

One joule equals 0.2390057361 calories.

12 joules equals 2.86807 calories.

Use the reverse Calories to Joules converter: multiply calories by 4.184.

Convert joules (J) to calories (cal) instantly — type a value below.

1 joule (J) = 0.2390057361 calories (cal)
1 calorie (cal) = 4.184 joules (J)

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To convert joules to calories, use this formula:

cal = J ÷ 4.184 (the same as multiplying by 0.2390057361)

The joule is the SI unit of energy: the work done by a force of one newton over one meter.

The (thermochemical) small calorie is exactly 4.184 joules: about the energy needed to warm 1 gram of water by 1 °C.

How do I convert joules to calories?: Divide the number of joules by 4.184. For example, 5 J = 1.19503 cal.
How many calories are in one joule?: One joule equals 0.2390057361 calories.
What is 12 J in calories?: 12 joules equals 2.86807 calories.
How do I convert calories back to joules?: Use the reverse Calories to Joules converter: multiply calories by 4.184.

Need other units? Use the full energy converter.