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 watt-hours without lookup tables or manual math.
This page is focused on converting calories to watt-hours. Type a number into the first field and the result appears immediately in the second field.
Example: 1 cal = 0.0011622222 Wh. Conversion formula: result = value × 4.184 / 3600.
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 watt-hour measures energy consumed or produced by one watt of power over one hour.
History: the watt-hour came from electrical engineering as the energy of one watt of power over one hour.
Enter a value in the Calorie field. The converter applies the formula "result = value × 4.184 / 3600" and immediately shows the result in watt-hours.
1 cal = 0.0011622222 Wh.
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