Kilojoules to Joules Converter
1 Kilojoule = 1,000 Joules
kJ
J
1 kJ = 1,000 J. To convert kilojoules to joules, multiply by 1,000; to convert back, multiply by 0.001.
Conversion formula
1 kJ = 1,000 J
To convert from Kilojoules to Joules, multiply the value in kilojoules by 1,000.
| Kilojoules (kJ) | Joules (J) |
|---|---|
| 0.001 | 1 |
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
1 kilojoule in every energy unit
| Joules | 1,000 J |
| Megajoules | 0.001 MJ |
| Calories | 239.006 cal |
| Kilocalories | 0.239006 kcal |
| Watt-hours | 0.277778 Wh |
| Kilowatt-hours | 0.000277778 kWh |
| British Thermal Units | 0.947817 BTU |
Frequently Asked Questions
How many joules are in 1 kilojoule?
1 kilojoule equals 1,000 joules. So 10 kilojoules are 10,000 joules and 100 kilojoules are 100,000 joules.
How do I convert kilojoules to joules by hand?
Multiply the number of kilojoules by 1,000. To go the other way, multiply joules by 0.001 (or divide by 1,000).
How many kilojoules are in 1 joule?
1 joule equals 0.001 kilojoules.