Kilowatt-hours to Kilojoules Converter
Convert kilowatt-hours (kWh) to kilojoules (kJ) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Result
- Kilojoules
- 3,600 kJ
How to use the kilowatt-hours to kilojoules converter
- Enter the kilowatt-hours (kWh).
- The results update as you type, or press Calculate.
- Read the kilojoules first, then the supporting figures below it.
Formula
Kilojoules = kilowatt-hours × 3,600
Worked example
For example, with these inputs:
- Kilowatt-hours (kWh): 1
the calculator returns:
- Kilojoules: 3,600 kJ
Kilowatt-hours to Kilojoules table
| Kilowatt-hours | Kilojoules |
|---|---|
| 1 kWh | 3,600 kJ |
| 2 kWh | 7,200 kJ |
| 5 kWh | 18,000 kJ |
| 10 kWh | 36,000 kJ |
| 20 kWh | 72,000 kJ |
| 25 kWh | 90,000 kJ |
| 50 kWh | 180,000 kJ |
| 100 kWh | 360,000 kJ |
| 250 kWh | 900,000 kJ |
| 500 kWh | 1,800,000 kJ |
| 1,000 kWh | 3,600,000 kJ |
About this conversion
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Frequently asked questions
How many kilojoules are in one kilowatt-hour?
1 kWh = 3,600 kJ.
How do I convert kWh to kJ?
Kilojoules = kilowatt-hours × 3,600.