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⚡ Energy Converter
Convert between joules, calories, kWh, BTU, and other energy units.
How Energy Conversion Works
Energy is the capacity to do work. The SI unit is the joule (J). Common conversions: 1 calorie = 4.184 J, 1 kWh = 3,600,000 J, 1 BTU = 1,055 J. Food calories (kcal) are actually kilocalories. This converter uses joules as its base unit for precise results.
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