Watt-hour (Wh)
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.
Quickly convert watt-hours to kilocalories without lookup tables or manual math.
This page is focused on converting watt-hours to kilocalories. Type a number into the first field and the result appears immediately in the second field.
Example: 1 Wh = 0.8604206501 kcal. Conversion formula: result = value × 3600 / 4184.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
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.
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 Watt-hour field. The converter applies the formula "result = value × 3600 / 4184" and immediately shows the result in kilocalories.
1 Wh = 0.8604206501 kcal.
Yes. Use the swap button or choose the reverse pair from the full conversion list.