Kilowatt-hour [kWh] to Joule [J] Converter
Quick Reference
1 Kilowatt-hour (kWh) = 3600000 Joule (J)
1 Joule (J) = 2.7778e-7 Kilowatt-hour (kWh)
How to Convert Kilowatt-hour to Joule
1 kWh = 3600000 J
1 J = 2.7778e-7 kWh
To convert Kilowatt-hour to Joule, multiply the value by 3600000. To convert Joule back to Kilowatt-hour, divide by 3600000.
Example: convert 10 kWh to J:
10 kWh = 10 x 3600000 = 36000000 J
Kilowatt-hour
Definition: A kilowatt-hour (symbol kWh) is a unit of energy equal to one kilowatt (1,000 watts) of power sustained for one hour. It is a standard unit for measuring electrical energy consumption.
History/origin: The kilowatt-hour became widely adopted with the expansion of electrical grids and the need for a practical unit to measure household and industrial energy usage.
Current use: Kilowatt-hours are the standard unit used by utility companies to bill consumers for electricity usage. It's also used to specify the energy output of power plants and the energy consumption of large appliances.
Joule
Definition: The joule (symbol: J) is the SI derived unit of energy. It is defined as the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of its motion through a distance of one metre (1 newton metre or N⋅m).
History/origin: Named after James Prescott Joule, an English physicist. Joule experimentally determined the mechanical equivalent of heat.
Current use: Used universally in science and engineering to quantify energy, work, and heat. Examples include kinetic energy, potential energy, and heat content of materials.
Kilowatt-hour to Joule Conversion Table
| Kilowatt-hour [kWh] | Joule [J] |
|---|---|
| 1 kWh | 3600000 J |
| 2 kWh | 7200000 J |
| 5 kWh | 18000000 J |
| 10 kWh | 36000000 J |
| 20 kWh | 72000000 J |
| 50 kWh | 180000000 J |
| 100 kWh | 360000000 J |
| 200 kWh | 720000000 J |
| 500 kWh | 1800000000 J |
| 1000 kWh | 3600000000 J |
Common Kilowatt-hour to Joule conversions
- 1 kWh = 3,600,000 J
- 2 kWh = 7,200,000 J
- 3 kWh = 10,800,000 J
- 4 kWh = 14,400,000 J
- 5 kWh = 18,000,000 J
- 6 kWh = 21,600,000 J
- 7 kWh = 25,200,000 J
- 8 kWh = 28,800,000 J
- 9 kWh = 32,400,000 J
- 10 kWh = 36,000,000 J
- 12 kWh = 43,200,000 J
- 15 kWh = 54,000,000 J
- 20 kWh = 72,000,000 J
- 25 kWh = 90,000,000 J
- 30 kWh = 108,000,000 J
- 40 kWh = 144,000,000 J
- 50 kWh = 180,000,000 J
- 60 kWh = 216,000,000 J
- 75 kWh = 270,000,000 J
- 100 kWh = 360,000,000 J
- 150 kWh = 540,000,000 J
- 200 kWh = 720,000,000 J
- 250 kWh = 900,000,000 J
- 300 kWh = 1,080,000,000 J
- 500 kWh = 1,800,000,000 J
- 750 kWh = 2,700,000,000 J
- 1,000 kWh = 3,600,000,000 J
Common pairs of Energy
Watt-hour
Milliwatt-hour
Kilowatt-hour
Megawatt-hour
Gigawatt-hour
Joule