Energy Converter
Convert energy measurements between Joules, kilojoules, calories, kilocalories, kilowatt‑hours, and British thermal units.
Enter values and click Calculate
Convert Energy Between Joules, Calories, kWh, BTU
Convert energy between Joules, calories, kWh, BTU, and more.
Formula
1 cal = 4.184 J, 1 kWh = 3.6×10⁶ J
How to Use?
- Enter the numeric value.
- Select the unit you are converting from.
- View results in all supported units.
Worked Examples
Convert 1 kWh to Joules
Given:inputs
energyValue:1
energyValue_unit:kWh
Result:calculated
J:3600000
Common Energy Units
Joule (SI), calorie (nutritional), kilowatt‑hour (electricity), BTU (heating).
Table: Energy Conversion Examples
| Input | Output |
|---|---|
| 1 kJ | 1000 J, 239 cal, 0.000278 kWh |
| 1 kWh | 3.6×10⁶ J, 860 kcal |
FAQs
What is the difference between calorie and Calorie?
In nutrition, 1 Calorie (kcal) = 1000 calories (cal). This converter uses small `cal` (4.184 J).
What is a BTU?
British Thermal Unit, used for heating and cooling, about 1055 J.