Convert between joules, calories, watt hours, and BTUs.
Result: 1 Joule = 0.001 Kilojoule
Formula
1 J = 0.001 kJ
Calculator
| Unit | Symbol | Also known as |
|---|---|---|
| Joule | J | - |
| Kilojoule | kJ | kj |
| Calorie | cal | - |
| Kilocalorie | kcal | food calorie |
| Watt Hour | Wh | wh |
| Kilowatt Hour | kWh | kwh |
| Electronvolt | eV | ev |
| British Thermal Unit | BTU | - |
| Input | Result |
|---|---|
| 1 J | 0.001 kJ |
| 5 J | 0.005 kJ |
| 10 J | 0.01 kJ |
| 100 J | 0.1 kJ |
Use this energy converter to compare supported units, check formulas, and calculate everyday or technical values. The tool uses joule as its base reference and updates instantly when you change the amount or selected units.
The energy converter changes values between supported energy units using the conversion data in the calculator.
Supported units include Joule, Kilojoule, Calorie, Kilocalorie, Watt Hour, Kilowatt Hour, Electronvolt, British Thermal Unit.
1 J = 0.001 kJ