Kilojoules to Joules Converter
Convert kilojoules to joules (kJ to J) instantly. 1 kilojoules equals 1,000 joules and 1 joules equals 0.001 kilojoules. Use the swap button to convert the other way.
- Free
- No signup
- Private: runs in your browser
- Works on mobile
Kilojoules to Joules Converter tool
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Quick conversion table
| Kilojoules | Joules |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
How to use Kilojoules to Joules Converter
- Type the value you want to convert.
- Choose the "from" and "to" units, or press Swap units.
- Read the converted value and copy it.
Why use DocConvertPRO?
- Free to use with no signup or watermark.
- Everything runs in your browser. Your input is not uploaded.
- Works on phones, tablets and computers.
- Made for Indian users: rupees, lakh/crore formats and local use cases.
About this tool
Multiply the value in kilojoules by 1,000 to get joules.
In electricity bills one "unit" means one kilowatt-hour (kWh).
Frequently asked questions
How many joules are in 1 kilojoules?
1 kilojoules = 1,000 joules.
How do I convert kJ to J?
Multiply the value in kilojoules by 1,000 to get joules.
How do I convert J back to kJ?
Use the swap button above or open the Joules to Kilojoules converter. 1 joules = 0.001 kilojoules.
Is this converter accurate?
It uses exact or internationally standard conversion factors and shows up to 10 significant digits.