About Units

Watt hours: Watt-hours (Wh) are a unit of energy equivalent to one watt of power used for one hour. This unit is commonly used to measure electrical energy consumption. For example, household electrical energy usage is often measured in kilowatt-hours (kWh), where 1 kWh equals 1,000 Wh.

Kilojoules: Kilojoules (kJ) are equal to 1,000 joules. This unit is often used in fields such as chemistry and nutrition to quantify energy. For example, food energy is commonly expressed in kilojoules per serving or per 100 grams.