Watt-hours to Kilocalories converter

To convert watt-hours to kilocalories, enter the value in the first field. The result in kilocalories is calculated automatically using the exact conversion factor.

1 Wh ≈ 0.860420650096 kcal
1 kcal ≈ 1.16222222222 Wh

Formula: kcal ≈ Wh × 0.860420650096
Wh ≈ kcal × 1.16222222222

Definitions: 1 Wh = 3600 J; 1 kcal = 1000 cal

The watt-hour (Wh) is the energy of one watt working for one hour, exactly 3,600 joules. It is used for the capacity of phone, laptop and power bank batteries and for small amounts of electricity.

The kilocalorie (kcal) is 1,000 calories, exactly 4,184 joules. It is the unit behind the Calories on food labels and is used for diet and exercise energy, especially in the United States and, next to kilojoules, in many other countries.

See the conversion table with commonly used values, handy for quick reference or study.