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Kilojoules and joules are both units of energy in the International System of Units (SI). This kj to j converter instantly helps you convert kilojoules to joules using a simple formula. If you want to do the reverse, try our J to kJ converter.
To convert kilojoules to joules, multiply the energy value in kilojoules by:
1 kilojoule = 1,000 joules
So, the conversion formula is:
joules = kilojoules × 1,000
How to convert 5 kilojoules to joules?
joules = 5 × 1,000 = 5,000 J
| Kilojoules | Joules |
|---|---|
| 0.001 kJ | 1 J |
| 0.002 kJ | 2 J |
| 0.003 kJ | 3 J |
| 0.004 kJ | 4 J |
| 0.005 kJ | 5 J |
| 0.01 kJ | 10 J |
| 0.05 kJ | 50 J |
| 0.1 kJ | 100 J |
| 0.5 kJ | 500 J |
| 1 kJ | 1,000 J |
There are exactly 1,000 joules in a kilojoule. This is because the prefix "kilo" in the metric system means 1,000.
So: 1 kilojoule (kJ) = 1,000 joules (J)
Q1: What is the formula to convert kilojoules to joules?
A1: Multiply the number of kilojoules by 1,000. (J = kJ × 1,000)
Q2: How many joules are in 1.5 kilojoules?
A2: 1.5 × 1,000 = 1,500 joules
Q3: Can I convert joules to kilojoules using this tool?
A3: Yes! You can click the arrow in the input field or visit our J to kJ converter.
Q4: What does "kilo" mean in kilojoules?
A4: "Kilo" means 1,000. So, 1 kilojoule is 1,000 joules.