How many joules are in a kilojoule?
There are 1,000 joules in 1 kilojoule (kJ).
Detailed answer
The SI prefix kilo- means 1,000. Multiply kJ by 1,000 for joules; divide joules by 1,000 for kJ.
Relationship context
Kilojoules appear on some food labels (especially outside the US) and in engineering heat tables.
Quick conversion table
| Kilojoule (kj) | Joule (j) |
|---|---|
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 6 | 6,000 |
| 7 | 7,000 |
| 8 | 8,000 |
| 9 | 9,000 |
| Kilojoule (kj) | Joule (j) |
|---|---|
| 10 | 10,000 |
| 20 | 20,000 |
| 30 | 30,000 |
| 40 | 40,000 |
| 50 | 50,000 |
| 60 | 60,000 |
| 70 | 70,000 |
| 80 | 80,000 |
| 90 | 90,000 |
| 100 | 100,000 |
More Kilojoules converters
Dedicated pages from Kilojoule to every other hub energy unit (kilocalorie, kilowatt-hour, calorie, joule, kilojoule, watt-hour, BTU, electronvolt).
- kilojoule to toe (Kilojoule to Ton of Oil Equivalent)
- kilojoule to gigajoule (Kilojoule to Gigajoule)
- kilojoule to mmbtu (Kilojoule to Million BTU (MMBtu, IT))
- kilojoule to therm (Kilojoule to Therm)
- kilojoule to kilowatt-hour (Kilojoule to Kilowatt Hour)
- kilojoule to kilowatt-hour-thermal (Kilojoule to Kilowatt-hour (thermal))
- kilojoule to megajoule (Kilojoule to Megajoule)
- kilojoule to kilocalorie (Kilojoule to Kilocalorie)
- kilojoule to watt-hour (Kilojoule to Watt Hour)
- kilojoule to btu (Kilojoule to British Thermal Unit)
- kilojoule to calorie (Kilojoule to Calorie)
- kilojoule to foot-pound (Kilojoule to Feet-Pound)
- kilojoule to joule (Kilojoule to Joule)
- kilojoule to gigaelectronvolt (Kilojoule to Gigaelectronvolt)
- kilojoule to megaelectronvolt (Kilojoule to Megaelectronvolt)
- kilojoule to electronvolt (Kilojoule to Electronvolt)