Energy Converter
Joules, kilojoules, calories, kilowatt hours and BTU.
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Convert energy between joules, kilojoules, calories, kilocalories, watt hours, kilowatt hours and BTU. Useful for food labels, electricity bills and heating.
Food energy and electricity
Nutrition labels in Australia and New Zealand use kilojoules, while many other countries use kilocalories (often just called Calories). One kilocalorie is 4.184 kilojoules. Electricity is billed in kilowatt hours, and one kWh is 3,600 kJ.
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