Energy Converter
Convert between energy units including joules, calories, kilowatt hours, BTU, electronvolts, and more.
Joules to Calories
1 J = 0.239 cal
Convert now →Calories to Joules
1 cal = 4.184 J
Convert now →Kilowatt Hours to Joules
1 kWh = 3600000 J
Convert now →Joules to Kilowatt Hours
1 J = 0 kWh
Convert now →Calories to Kilocalories
1 cal = 0.001 kcal
Convert now →Kilocalories to Calories
1 kcal = 1000 cal
Convert now →British Thermal Units to Joules
1 BTU = 1055.0559 J
Convert now →Joules to British Thermal Units
1 J = 0.0009 BTU
Convert now →Kilowatt Hours to British Thermal Units
1 kWh = 3412.1416 BTU
Convert now →Electronvolts to Joules
1 eV = 0 J
Convert now →Kilojoules to Calories
1 kJ = 239.0057 cal
Convert now →Calories to Kilojoules
1 cal = 0.0042 kJ
Convert now →Watt Hours to Joules
1 Wh = 3600 J
Convert now →Kilocalories to Kilojoules
1 kcal = 4.184 kJ
Convert now →About Energy Conversion
Convert between energy units including joules, calories, kilowatt hours, BTU, electronvolts, and more. Our free online energy converter provides instant, accurate results for all your conversion needs. Each converter includes a detailed conversion formula, step-by-step examples, and a quick reference table to help you understand the relationship between different energy units.