Kilowatt-hour to JouleConverter
Instantly convert Kilowatt-hour (kWh) to Joule (J). Free, accurate, and easy to use.
How to Convert Kilowatt-hour to Joule
To convert Kilowatt-hour (kWh) to Joule (J), multiply your value by 3600000.
Example: 5 kWh × 3600000 = 18000000 J
What is a Kilowatt-hour?
The kilowatt-hour (kWh) is the energy consumed by a device drawing 1,000 watts for one continuous hour, equal to exactly 3,600,000 Joules (3.6 MJ). It is the universal billing unit for household and commercial electricity consumption. The average US household uses about 10,500 kWh per year. A 100-watt incandescent light bulb running for 10 hours consumes exactly 1 kWh.
What is a Joule?
The Joule (J) is the SI unit of energy, defined as the work done when a force of 1 Newton moves an object 1 meter. Named after 19th-century physicist James Prescott Joule, who established the mechanical equivalent of heat, it is the universal unit for all energy forms in science. Lifting a 100-gram apple one meter requires approximately 1 Joule. One food Calorie (kcal) equals 4,184 Joules.
Kilowatt-hour to Joule Conversion Table
| Kilowatt-hour (kWh) | Joule (J) |
|---|---|
| 0.001 kWh | 3600 J |
| 0.01 kWh | 36000 J |
| 0.1 kWh | 360000 J |
| 0.5 kWh | 1800000 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 | 1.8000e+9 J |
| 1000 kWh | 3.6000e+9 J |
| 5000 kWh | 1.8000e+10 J |
| 10000 kWh | 3.6000e+10 J |
| 50000 kWh | 1.8000e+11 J |
| 100000 kWh | 3.6000e+11 J |
| 1000000 kWh | 3.6000e+12 J |
| 1000000000 kWh | 3.6000e+15 J |
Frequently Asked Questions
How do I convert Kilowatt-hour to Joule?
Multiply the Kilowatt-hour value by 3600000. Formula: J = kWh × 3600000. Example: 10 kWh = 36000000 J.
How many Joule are in one Kilowatt-hour?
One Kilowatt-hour (kWh) equals 3600000 Joule (J).
How many Kilowatt-hour are in one Joule?
One Joule (J) equals 2.7778e-7 Kilowatt-hour (kWh).
What is the exact conversion factor from Kilowatt-hour to Joule?
The conversion factor is 3600000. Multiply any kWh value by this number to get J. For the reverse, multiply by 2.7778e-7.
How do I convert Joule back to Kilowatt-hour?
Divide by 3600000, or equivalently multiply by 2.7778e-7. Formula: kWh = J ÷ 3600000.
Is the Kilowatt-hour-to-Joule conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 3600000 is exact and universally agreed upon.