What is a Kilowatt-hour (kWh)?

A kilowatt-hour (kWh) is a unit of energy equal to 1,000 watt-hours, commonly used to measure electrical energy consumption.

Definition

Symbol

kWh

Category

Energy

System

Metric

1 {unit} = {value} {otherUnit}

1 Kilowatt-hour = 3600000 Joule (J)

1 Kilowatt-hour = 3600 Kilojoule (kJ)

1 Kilowatt-hour = 860421 Calorie (cal)

1 Kilowatt-hour = 860.421 Kilocalorie (kcal)

1 Kilowatt-hour = 1000 Watt-hour (Wh)

Common Uses

  • Electricity billing
  • Home energy usage
  • Electric vehicle range

Kilowatt-hour Conversions

Related Units