calcular.eu
Energy converter
Convert between joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours and BTU.
How it works
A kilocalorie (the “calorie” on food labels) is 4.184 kJ. A kWh, the unit on your electricity bill, is 3.6 million joules.
Frequently asked questions
How many kJ is 100 kcal?
418.4 kJ.
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