The conversion of 1 kilojoule (kj) to kilowatt-hours (kwh) is approximately 0.0002778 kwh.
Since 1 kilojoule equals 0.0002778 kilowatt-hours, this conversion is based on the relationship between energy units. Kilojoules measure energy in the metric system, while kilowatt-hours are commonly used for electrical energy billing. To convert, multiply the kj value by 0.0002778.
Conversion Tool
Result in kwh:
Conversion Formula
The formula to convert kilojoules to kilowatt-hours is: kwh = kj * 0.0002778. This works because 1 kilowatt-hour equals 3,600,000 joules, and 1 kilojoule equals 1,000 joules. Dividing 1,000 joules by 3,600,000 gives 0.0002778, which is the conversion factor.
For example, to convert 10 kj: 10 * 0.0002778 = 0.002778 kwh. This means 10 kilojoules equals approximately 0.002778 kilowatt-hours. The formula ensures accurate conversion based on the energy units’ relationship.
Conversion Example
- Example 1: Convert 5 kj to kwh
- Multiply 5 by 0.0002778
- 5 * 0.0002778 = 0.001389
- Result = 0.001389 kwh
- Example 2: Convert 15 kj to kwh
- 15 * 0.0002778 = 0.004167
- Result = 0.004167 kwh
- Example 3: Convert 20 kj to kwh
- 20 * 0.0002778 = 0.005556
- Result = 0.005556 kwh
- Example 4: Convert 0.5 kj to kwh
- 0.5 * 0.0002778 = 0.000139
- Result = 0.000139 kwh
Conversion Chart
| kj | kwh |
|---|---|
| -24.0 | -0.0067 |
| -20.0 | -0.0056 |
| -15.0 | -0.0042 |
| -10.0 | -0.0028 |
| -5.0 | -0.0014 |
| 0.0 | 0.0 |
| 5.0 | 0.0014 |
| 10.0 | 0.0028 |
| 15.0 | 0.0042 |
| 20.0 | 0.0056 |
| 25.0 | 0.0069 |
| 26.0 | 0.0072 |
This chart helps you find the approximate kwh value for any kj value listed. To use, find your kj number in the first column, then read across to see the corresponding kwh in the second column.
Related Conversion Questions
- How many kwh are equivalent to 1 kj in electrical energy measurements?
- What is the kilowatt-hour value of 1 kilojoule of energy?
- Can I convert 1 kj directly into kwh for power consumption calculations?
- What is the kwh measurement for 1 kj of energy released in a process?
- How do I convert 1 kilojoule to kilowatt-hours for energy billing?
- Is there an easy way to understand how 1 kj relates to kwh?
- What is the formula to find kwh from kilojoules for small energy quantities like 1 kj?
Conversion Definitions
kj
Kilojoule (kj) is a unit of energy in the metric system, representing 1,000 joules, used to measure work, heat, or energy transfer in scientific and engineering contexts.
kwh
Kilowatt-hour (kwh) is a unit of energy equal to the energy used by a 1,000-watt device in one hour, commonly used in electricity billing to quantify energy consumption over time.
Conversion FAQs
How many kilowatt-hours is 1 kj?
1 kilojoule equals approximately 0.0002778 kilowatt-hours. This small value reflects the fact that kilojoules are a metric energy unit, whereas kilowatt-hours are used for electrical energy over time.
Why is the conversion factor from kj to kwh so small?
The conversion factor is small because 1 kilowatt-hour contains 3,600,000 joules, making 1 kilojoule a tiny fraction of a kilowatt-hour. This difference highlights the scale disparity between the units.
Can I use this conversion for large energy amounts?
Yes, the same formula applies regardless of the quantity. For larger values, multiply the number of kilojoules by 0.0002778 to get the equivalent in kilowatt-hours.
Is this conversion accurate for scientific calculations?
Yes, the conversion is based on precise energy unit definitions, making it suitable for scientific and technical use where exact measurements are necessary.