Use this free, accurate joule to kilowatt-hour calculator to convert between Joule (J) and Kilowatt-hour (kWh). Includes live instant results, complete mathematical formulas, conversion tables, and step-by-step examples.
2.77777778E-7 Kilowatt-hour
1 J is equal to 2.7778e-7 kWh.
kWh = J × 2.7778e-7
energy Converters
To convert from Joule to Kilowatt-hour, multiply the value in Joule by 2.7778e-7 (or use the formula: kWh = J × 2.7778e-7).
Take your initial measurement in Joule (J). For instance, let's convert 1 J.
Multiply by the standard conversion factor (2.7778e-7).
The final converted measurement equals 2.7778e-7 Kilowatt-hour (kWh).
Compare standard reference values and common conversion benchmarks.
| Joule (J) | Kilowatt-hour (kWh) | Action |
|---|---|---|
| 1 J | 2.7778e-7 kWh | |
| 2 J | 5.5556e-7 kWh | |
| 3 J | 8.3333e-7 kWh | |
| 5 J | 1.3889e-6 kWh | |
| 10 J | 2.7778e-6 kWh | |
| 15 J | 4.1667e-6 kWh | |
| 20 J | 5.5556e-6 kWh | |
| 25 J | 6.9444e-6 kWh | |
| 50 J | 0.00001 kWh | |
| 75 J | 0.00002 kWh | |
| 100 J | 0.00003 kWh | |
| 250 J | 0.00007 kWh | |
| 500 J | 0.00014 kWh | |
| 1000 J | 0.00028 kWh |
Official standards, measurement systems, and real-world everyday applications.
A joule is the SI derived unit of energy, work, and heat (1 N·m or 1 W·s).
Common Practical Uses
A kilowatt-hour is a commercial electrical energy unit equal to 3,600,000 joules (3.6 MJ).
Common Practical Uses
Calculate from Kilowatt-hour (kWh) back to Joule (J).
Frequently used unit conversions in this category:
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There are 2.7778e-7 kilowatt-hours in 1 joules. Exactly 1 J is equal to 2.7778e-7 kWh.
The conversion formula is: Kilowatt-hour = kWh = J × 2.7778e-7. Applying this to 1 J gives: 1 × 2.7778e-7 = 2.7778e-7 kWh.
To convert in reverse from kilowatt-hours to joules, multiply by the inverse factor: 1 kWh = 3600000 J. Alternatively, divide your Kilowatt-hour amount by 2.7778e-7.
For quick estimates, divide the Joule value by 3600000.
Joule (J) belongs to the Metric (SI) system, commonly used in Physics problems, Mechanical work, Kinetic energy. In comparison, Kilowatt-hour (kWh) is part of the Electrical Commercial system, frequently applied in Home electric utility bills, Electric vehicle battery pack capacity (e.g. 75 kWh).
Key milestones include: 1 J = 2.7778e-7 kWh, 5 J = 1.3889e-6 kWh, 10 J = 2.7778e-6 kWh, 50 J = 0 kWh, and 100 J = 0 kWh.