⇌Free
Energy converter
Convert joules, watt-hours, thermochemical calories and electronvolts.
The converter uses joules as the shared scale: one kWh is 3,600,000 J and one thermochemical calorie is 4.184 J. BTU means the international-table definition, and kcal means 1,000 thermochemical calories.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Value: 1 From unit: kWh To unit: J
Example result
{
"value": 3600000,
"unit": "J"
}Limitations and details
Signed energy values are accepted; the tool does not convert power to energy without a duration or use other calorie and BTU definitions.
Inputs and options
- Value
- Number
- From unit
- Joule / Kilojoule / Watt-hour / Kilowatt-hour / Thermochemical calorie / Thermochemical kilocalorie / BTU (IT) / Electronvolt
- To unit
- Joule / Kilojoule / Watt-hour / Kilowatt-hour / Thermochemical calorie / Thermochemical kilocalorie / BTU (IT) / Electronvolt
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.