Energy Converter
Convert between different energy units including joules, calories, kilowatt-hours, electron volts, and other energy measurement units.
Energy Converter
Conversion Results
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Energy Units
SI Units:
Joule (J), Watt-hour (Wh)
Thermal Units:
Calorie, BTU, Therm
Scientific Units:
Electron Volt, Erg
Conversion Tips
- 1 J = 0.239 cal
- 1 kWh = 3,600,000 J
- 1 eV = 1.60218e-19 J
- Use for physics and engineering
Conversion History
Your energy conversion history will appear here...