Calorie (cal)
The calorie is used for heat energy and often appears in nutrition and chemistry.
History: the calorie originated in heat science as a quantity of heat related to warming water.
Quickly convert calories to kilocalories without lookup tables or manual math.
This page is focused on converting calories to kilocalories. Type a number into the first field and the result appears immediately in the second field.
Example: 1 cal = 0.001 kcal. Conversion formula: result = value × 4.184 / 4184.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The calorie is used for heat energy and often appears in nutrition and chemistry.
History: the calorie originated in heat science as a quantity of heat related to warming water.
The kilocalorie equals 1000 calories and is the familiar “Calorie” on food labels.
History: the kilocalorie appeared as a larger heat unit and became the familiar food Calorie.
Enter a value in the Calorie field. The converter applies the formula "result = value × 4.184 / 4184" and immediately shows the result in kilocalories.
1 cal = 0.001 kcal.
Yes. Use the swap button or choose the reverse pair from the full conversion list.