Quickly convert kilojoules to kilowatt-hours and vice versa using Examples.com. Enter your values for fast and precise conversions.
KJ to kWh
Formula: Energy in Kilowatt Hours (kWh) = Energy in Kilojoules (kJ) ∕ 3600
Kilojoule :
Kilowatt Hour :
| Kilojoules | Kilowatt Hours |
|---|---|
| 1 | 0.0002777777777777778 |
kWh to KJ
Formula: Energy in Kilojoules (kJ) = Energy in Kilowatt Hours (kWh) x 3600
Kilowatt Hour :
Kilojoule :
| Kilowatt Hours | Kilojoules |
|---|---|
| 1 | 3600 |
Energy Converters to Kilojoule
Energy Converters to Kilowatt-hour
Conversion Factors:
- Kilojoules to Kilowatt-Hours: 1 kilowatt-hour = 3,600 kilojoules
- Kilowatt-Hours to Kilojoules: 1 kilojoule = 1/3,600 kilowatt-hours
How to Convert Kilojoules to Kilowatt-Hours:
To convert kilojoules to kilowatt-hours, divide the number of kilojoules by 3,600.
Kilowatt-Hours (kWh) = Kilojoules (kJ)/3,600
Example: Convert 10,000 kilojoules to kilowatt-hours.
Kilowatt-Hours = 10,000 kJ/3,600 = 2.78 kWh
How to Convert Kilowatt-Hours to Kilojoules:
To convert kilowatt-hours to kilojoules, multiply the number of kilowatt-hours by 3,600.
Kilojoules (kJ) = Kilowatt-Hours (kWh)×3,600
Example: Convert 5 kilowatt-hours to kilojoules.
Kilojoules = 5 kWh×3,600 = 18,000 kJ
Kilojoules to Kilowatt-Hours Conversion Table
| Kilojoules (kJ) | Kilowatt-Hours (kWh) |
|---|---|
| 1 kJ | 0.00028 kWh |
| 2 kJ | 0.00056 kWh |
| 3 kJ | 0.00083 kWh |
| 4 kJ | 0.00111 kWh |
| 5 kJ | 0.00139 kWh |
| 6 kJ | 0.00167 kWh |
| 7 kJ | 0.00194 kWh |
| 8 kJ | 0.00222 kWh |
| 9 kJ | 0.00250 kWh |
| 10 kJ | 0.00278 kWh |
| 20 kJ | 0.00556 kWh |
| 30 kJ | 0.00833 kWh |
| 40 kJ | 0.01111 kWh |
| 50 kJ | 0.01389 kWh |
| 60 kJ | 0.01667 kWh |
| 70 kJ | 0.01944 kWh |
| 80 kJ | 0.02222 kWh |
| 90 kJ | 0.02500 kWh |
| 100 kJ | 0.02778 kWh |
kJ to kWh Conversion Chart
Kilowatt-Hours to Kilojoules Conversion Table
| Kilowatt-Hours (kWh) | Kilojoules (kJ) |
|---|---|
| 1 kWh | 3,600 kJ |
| 2 kWh | 7,200 kJ |
| 3 kWh | 10,800 kJ |
| 4 kWh | 14,400 kJ |
| 5 kWh | 18,000 kJ |
| 6 kWh | 21,600 kJ |
| 7 kWh | 25,200 kJ |
| 8 kWh | 28,800 kJ |
| 9 kWh | 32,400 kJ |
| 10 kWh | 36,000 kJ |
| 20 kWh | 72,000 kJ |
| 30 kWh | 108,000 kJ |
| 40 kWh | 144,000 kJ |
| 50 kWh | 180,000 kJ |
| 60 kWh | 216,000 kJ |
| 70 kWh | 252,000 kJ |
| 80 kWh | 288,000 kJ |
| 90 kWh | 324,000 kJ |
| 100 kWh | 360,000 kJ |
kWh to kJ Conversion Chart
Difference Between Kilojoules to Kilowatt-Hours
| Aspect | Kilojoules (kJ) | Kilowatt-Hours (kWh) |
|---|---|---|
| Unit of Measurement | Kilojoule is a unit of energy in the metric system. | Kilowatt-hour is a unit of energy commonly used to measure electrical energy. |
| Symbol | Represented by “kJ”. | Represented by “kWh”. |
| Conversion Factor | 1 kilojoule = 0.000278 kilowatt-hours. | 1 kilowatt-hour = 3,600 kilojoules. |
| Common Use | Widely used in scientific contexts and most countries to express energy values. | Commonly used by electric utilities and in household energy consumption. |
| Global Preference | Preferred in many countries for energy-related measurements, especially in scientific literature. | Used worldwide for billing purposes by electricity providers. |
| Energy Expression | Expresses energy in joules (1 kilojoule = 1,000 joules). | Expresses energy in terms of power over time (1 kilowatt-hour = 1,000 watt-hours). |
| Practical Example | Energy content in food, scientific calculations. | Electricity usage in homes, energy billing. |
| Historical Context | Part of the International System of Units (SI), adopted globally for various scientific measures. | Widely adopted due to the practical need to measure electrical energy consumption. |
1. Solved Examples on Converting Kilojoules to Kilowatt-Hours
Example 1:
Convert 5,000 kilojoules to kilowatt-hours.
Kilowatt-Hours (kWh) = Kilojoules (kJ)/3,600
Calculation: Kilowatt-Hours = 5,000 kJ/3,600 = 1.39 kWh
Example 2:
Convert 8,400 kilojoules to kilowatt-hours.
Calculation: Kilowatt-Hours = 8,400 kJ/3,600 = 2.33 kWh
Example 3:
Convert 12,000 kilojoules to kilowatt-hours.
Calculation: Kilowatt-Hours = 12,000 kJ/3,600 = 3.33 kWh
Example 4:
Convert 15,000 kilojoules to kilowatt-hours.
Calculation: Kilowatt-Hours = 15,000 kJ/3,600 = 4.17 kWh
Example 5:
Convert 20,000 kilojoules to kilowatt-hours.
Calculation: Kilowatt-Hours = 20,000 kJ/3,600 = 5.56 kWh
2. Solved Examples on Converting Kilowatt-Hours to Kilojoules
Example 1:
Convert 2 kilowatt-hours to kilojoules.
Formula: Kilojoules (kJ) = Kilowatt-Hours (kWh)×3,600
Calculation: Kilojoules = 2 kWh×3,600 = 7,200 kJ
Example 2:
Convert 5 kilowatt-hours to kilojoules.
Calculation: Kilojoules = 5 kWh×3,600=18,000 kJ
Example 3:
Convert 8 kilowatt-hours to kilojoules.
Calculation: Kilojoules = 8 kWh×3,600 = 28,800 kJ
Example 4:
Convert 10 kilowatt-hours to kilojoules.
Calculation: Kilojoules = 10 kWh×3,600 = 36,000 kJ
Example 5:
Convert 12 kilowatt-hours to kilojoules.
Calculation: Kilojoules = 12 kWh×3,600 = 43,200 kJ
Can I find online tools for converting kilojoules to kilowatt-hours?
Yes, there are many online calculators and conversion tools available that can quickly and accurately convert between kilojoules and kilowatt-hours, making it convenient for users.
Why is it important to know the conversion between kilojoules and kilowatt-hours?
Understanding this conversion is essential for various scientific and practical applications, such as comparing energy consumption and calculating electrical energy usage.
Is there a simple way to remember the conversion factor?
Yes, remember that 1 kilowatt-hour equals 3,600 kilojoules. Conversely, 1 kilojoule is approximately 0.000278 kilowatt-hours.
How accurate is the conversion between kilojoules and kilowatt-hours?
The conversion is precise based on the defined conversion factor, ensuring accurate and reliable calculations.
What are practical applications of converting kilojoules to kilowatt-hours?
Practical applications include calculating energy efficiency, understanding energy consumption in appliances, and converting nutritional energy to electrical energy equivalents.
Can I use kilojoules and kilowatt-hours interchangeably?
While they both measure energy, they are used in different contexts. Kilojoules are often used in scientific and nutritional contexts, while kilowatt-hours are used to measure electrical energy consumption.