Convert Kilocalories to Joules

Use our accurate converter to change kilocalories into joules. This tool is simple to use and works instantly.

How to Calculate

To change kilocalories to joules, you just need to know the conversion factor.

Rule: 1 Kilocalories = 4,186.8 Joules

Kilocalories to Joules

Pre-defined calculator for direct kilocalories to joules conversion.

From

Kilocalories (kcal)

To (Result)

Joules (J)

Formula: 1 Kilocalories = 4,186.8 Joules

Definition: A kilocalorie is equal to 1,000 calories.

History: This is what is usually meant by a 'Calorie' on food boxes.

Where it is used: Primary unit for talking about the energy in the food we eat.

Calculation: To convert kilocalories to joules, multiply the value by the conversion factor (4,186.8).

Example: convert 15 kcal to j:
15 kcal = 15 × 4,186.8 j = 62,802 j

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