Convert Joules to Kilowatt-Hours
1 J = 2.7778e-7 kWh
Conversion Table
| joules (J) | kilowatt-hours (kWh) |
|---|---|
| 0.5 | 1.3889e-7 |
| 1 | 2.7778e-7 |
| 2 | 5.5556e-7 |
| 5 | 0.00000138889 |
| 10 | 0.00000277778 |
| 25 | 0.00000694444 |
| 50 | 0.0000138889 |
| 100 | 0.0000277778 |
| 250 | 0.0000694444 |
| 500 | 0.000138889 |
| 1000 | 0.000277778 |
How to Convert joules to kilowatt-hours
To convert joules to kilowatt-hours, multiply the value by the conversion factor:
For example: 10 J = 0.00000277778 kWh
About joules and kilowatt-hours
The Conversion Formula
To convert joules to kilowatt-hours, multiply the value by the conversion factor: 1 J = 2.7778e-7 kWh. For a worked example, suppose you need to convert 25 J to kilowatt-hours: 25 × 2.7778e-7 = 0.00000694444 kWh. To convert in the opposite direction, divide by 2.7778e-7, or equivalently multiply by 3600000.
About joules
The Joule (J) is the standard unit of energy in the International System of Units (SI). It is named after James Prescott Joule, who proved that heat is a form of energy. One Joule is the work done by a force of one Newton moving an object one meter. It is a small unit: lifting a small apple one meter takes about 1 Joule. joules are commonly used in Scientific research, Physics education, Electronics ratings, and Kinetic energy calculations, Work done.
The energy of a heartbeat is roughly 1 Joule.
About kilowatt-hours
The kilowatt-hour (kWh) is the unit of energy used to bill electricity. It is not a unit of power (kilowatts), but of energy: it is 1,000 watts of power sustained for one hour. One kWh equals exactly 3.6 million Joules. It was popularized by the electric utility industry as a unit easy for consumers to understand. kilowatt-hours are commonly used in Electric bills, Electric vehicle batteries, Solar panel output, and Home energy audits, Power plant generation.
Running a 1,000W microwave for one hour uses 1 kWh.
When Would You Convert joules to kilowatt-hours?
Converting between joules and kilowatt-hours is one of the most common energy conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 J = 2.7778e-7 kWh) memorized or bookmarked can save time in professional and everyday contexts alike.