Quickly convert kilojoules to kilowatt-hours and vice versa using Examples.com. Enter your values for fast and precise conversions.

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 kJ0.00028 kWh
2 kJ0.00056 kWh
3 kJ0.00083 kWh
4 kJ0.00111 kWh
5 kJ0.00139 kWh
6 kJ0.00167 kWh
7 kJ0.00194 kWh
8 kJ0.00222 kWh
9 kJ0.00250 kWh
10 kJ0.00278 kWh
20 kJ0.00556 kWh
30 kJ0.00833 kWh
40 kJ0.01111 kWh
50 kJ0.01389 kWh
60 kJ0.01667 kWh
70 kJ0.01944 kWh
80 kJ0.02222 kWh
90 kJ0.02500 kWh
100 kJ0.02778 kWh

kJ to kWh Conversion Chart

Kilowatt-Hours to Kilojoules Conversion Table

Kilowatt-Hours (kWh)Kilojoules (kJ)
1 kWh3,600 kJ
2 kWh7,200 kJ
3 kWh10,800 kJ
4 kWh14,400 kJ
5 kWh18,000 kJ
6 kWh21,600 kJ
7 kWh25,200 kJ
8 kWh28,800 kJ
9 kWh32,400 kJ
10 kWh36,000 kJ
20 kWh72,000 kJ
30 kWh108,000 kJ
40 kWh144,000 kJ
50 kWh180,000 kJ
60 kWh216,000 kJ
70 kWh252,000 kJ
80 kWh288,000 kJ
90 kWh324,000 kJ
100 kWh360,000 kJ

kWh to kJ Conversion Chart

Difference Between Kilojoules to Kilowatt-Hours

AspectKilojoules (kJ)Kilowatt-Hours (kWh)
Unit of MeasurementKilojoule is a unit of energy in the metric system.Kilowatt-hour is a unit of energy commonly used to measure electrical energy.
SymbolRepresented by “kJ”.Represented by “kWh”.
Conversion Factor1 kilojoule = 0.000278 kilowatt-hours.1 kilowatt-hour = 3,600 kilojoules.
Common UseWidely used in scientific contexts and most countries to express energy values.Commonly used by electric utilities and in household energy consumption.
Global PreferencePreferred in many countries for energy-related measurements, especially in scientific literature.Used worldwide for billing purposes by electricity providers.
Energy ExpressionExpresses energy in joules (1 kilojoule = 1,000 joules).Expresses energy in terms of power over time (1 kilowatt-hour = 1,000 watt-hours).
Practical ExampleEnergy content in food, scientific calculations.Electricity usage in homes, energy billing.
Historical ContextPart 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.