Energy Converter
Convert between joules, calories, kilowatt-hours, and more instantly.
Convert Energy Units Instantly and Accurately
Our Energy Converter helps you convert between different energy units quickly and accurately.
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Joules (J)
SI unit of energy: 1 N·m.
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Calories (cal)
Energy needed to raise 1g of water by 1°C.
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Kilowatt-hours (kWh)
Common unit for electricity billing.
Joules, Calories, Kilowatt-hours — All in One Converter
Essential tool for professionals and students working with energy measurements.
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For Physicists
Convert energy units in calculations.
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For Engineers
Convert between energy units in design.
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For Students
Learn about energy units and conversions.
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