Kilowatt-hour to Kilojoule Converter
Convert kilowatt-hours to kilojoules with this free energy converter. The exact relationship used on this page is 1 kilowatt-hour = 3600 kilojoules. Type any number — the result updates instantly, works on phones and desktops, and is ready to copy into homework, a spec sheet, or a shopping list.
Formula: Kilojoule = Kilowatt-hour × 3600
How to convert kilowatt-hours to kilojoules
- Enter the value in kilowatt-hours in the converter.
- Read the equivalent amount in kilojoules.
- Use the swap link if you need kilojoule to kilowatt-hour instead.
- Check the table for common values without typing.
Worked examples
- 1 kWh = 3,600 kJ
- 5 kWh = 18,000 kJ
- 10 kWh = 36,000 kJ
- 25 kWh = 90,000 kJ
Conversion table
Common kilowatt-hours values converted to kilojoules.
| kWh | kJ |
|---|---|
| 1 | 3,600 |
| 2 | 7,200 |
| 3 | 10,800 |
| 4 | 14,400 |
| 5 | 18,000 |
| 6 | 21,600 |
| 7 | 25,200 |
| 8 | 28,800 |
| 9 | 32,400 |
| 10 | 36,000 |
| 20 | 72,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 250 | 900,000 |
| 500 | 1,800,000 |
| 1,000 | 3,600,000 |
About this conversion
Kilowatt-hour (kWh) and Kilojoule (kJ) are both energy units. Energy converters connect food labels (kcal), electricity bills (kWh), physics (joules), and heating (BTU). Bookmark this URL when you convert kilowatt-hours to kilojoules often, then explore related pairs in the same category if you need a different target unit.
Need the other direction? Open the kilojoule to kilowatt-hour converter.
FAQ
How many kilojoules are in 1 kilowatt-hour?+
1 kilowatt-hour equals 3600 kilojoules.
What is the formula to convert kilowatt-hours to kilojoules?+
Kilojoule = Kilowatt-hour × 3600
How do I convert kilowatt-hours to kilojoules by hand?+
Multiply the kilowatt-hour value by 3600. Example: 10 kilowatt-hours × 3600 = 36000 kilojoules.
Is this kWh to kJ converter accurate?+
Yes. Linear conversions use internationally agreed factors relative to SI. Temperature and inverse fuel units use the standard offset or reciprocal formulas, not a guessed scale factor.