cal, Energy

Calorie is French and derives from the Latin calor (heat). In most fields, it has been replaced by the joule, the SI unit of energy. However, it remains in common use for the amount of food energy. Many different definitions for the calorie emerged during the 19th and 20th centuries. Read more >>

I want to convert:

Metric

kWh
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MJ
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kJ
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J
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Ws
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eV
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British/American

Quad
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Therm
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British thermal unit
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Foot-pound
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Other

kcal
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cal
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Thermie
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Broadly speaking, energy refers to "the potential for causing a change". There are different forms of energy. Many forms of energy refer to changes in movement of objects or their potential for causing other kinds of change. Hence, in the real world, energy can be viewed as the ability to perform an action. Read more >>