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Energy Converters
Every energy conversion we offer. Each page gives the exact factor, a worked example and a quick-reference table.
All energy conversions
BTUs to kilojoules1 British thermal unit = 1.0551 kilojouleBTUs to kilowatt-hours1 British thermal unit = 0.000293071 kilowatt-hourcalories to joules1 calorie = 4.184 joulejoules to calories1 joule = 0.239 caloriejoules to kilowatt-hours1 joule = 2.77778e-07 kilowatt-hourjoules to watt-hours1 joule = 0.000277778 watt-hourkilocalories to kilojoules1 kilocalorie = 4.184 kilojoulekilojoules to BTUs1 kilojoule = 0.9478 British thermal unitkilojoules to kilocalories1 kilojoule = 0.239 kilocaloriekilowatt-hours to BTUs1 kilowatt-hour = 3412.14 British thermal unitkilowatt-hours to joules1 kilowatt-hour = 3.6e+06 joulewatt-hours to joules1 watt-hour = 3600 joule
About energy conversion
Energy units convert by a single fixed ratio. Pick the conversion you need above, or browse all unit categories.