Energy & Work
Joule to Kilojoule Converter
Convert Joule to Kilojoule with the exact formula, a worked example and a quick conversion table.
Smart input
β
Quick values:
Conversion formula
The exact formula applied:
β
Conversion formula
kJ = J Γ· 1000
J = kJ Γ 1000
Worked example
1 J = 0.001 kJ
kJ = J Γ· 1000
Energy is measured in joules; kilowatt-hours for electricity, kilocalories for food/HVAC and BTU for heating/cooling.
Quick conversion table
| Joule (J) | Kilojoule (kJ) |
|---|---|
| 0.001 | 0.000001 |
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 1 | 0.001 |
| 10 | 0.01 |
| 100 | 0.1 |
| 1,000 | 1 |
Reverse conversion table
| Kilojoule (kJ) | Joule (J) |
|---|---|
| 0.001 | 1 |
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 10 | 10,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
About the two units
JJoule
The SI base unit of energy.
1 J = 1 J
SI Derived Unit Energy & Work
kJKilojoule
One thousand joules.
1 kJ = 1000 J
SI Derived Unit Energy & Work
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