How many joules are in one kilowatt-hour?
One kilowatt-hour equals exactly 3,600,000 joules.
Convert Kilowatt-hour (kWh) to Joule (J) instantly.
Calculation
value × 3600000
| Quick Conversion | Converted |
|---|---|
| 1 kWh | 3,600,000 J |
| 5 kWh | 18,000,000 J |
| 10 kWh | 36,000,000 J |
| 100 kWh | 360,000,000 J |
| 1,000 kWh | 3.600000e+9 J |
A kilowatt-hour is the energy delivered by one kilowatt of power over one hour.
Kilowatt-hours became the standard practical unit for billing and reporting electrical energy consumption.
kWh is used for utility bills, appliances, electric vehicles, solar production, battery storage, and grid energy reporting.
A joule is the SI unit of energy, work, and heat.
The joule is named after James Prescott Joule and became the standard SI unit for energy transfer.
Joules are used in physics, engineering, electricity, mechanics, thermodynamics, chemistry, and scientific reporting.
Mathematically, joule (J) = kilowatt-hour (kWh) converted with the formula below.
1 kWh = 3,600,000 J
1 J = 0 kWh
Formula: value × 3600000
Example: 15 kWh = 54,000,000 J
Precision note: Use 1 kWh = 3,600,000 J exactly. Practical electricity measurements may still be rounded by meters, bills, or device specifications.
1 kWh = 3,600,000 J
1 J = 0 kWh
| Kilowatt-hour [kWh] | Joule [J] |
|---|---|
| 0.01 kWh | 36,000 J |
| 0.1 kWh | 360,000 J |
| 1 kWh | 3,600,000 J |
| 2 kWh | 7,200,000 J |
| 5 kWh | 18,000,000 J |
| 10 kWh | 36,000,000 J |
| 20 kWh | 72,000,000 J |
| 50 kWh | 180,000,000 J |
| 100 kWh | 360,000,000 J |
One kilowatt-hour equals exactly 3,600,000 joules.
A kilowatt-hour is 1000 watts sustained for 3600 seconds, so it contains 3.6 million joules.
2 kWh equals 7,200,000 J.