How Many Joules Per Calorie Are There?


Quick Answer

According to Ask Numbers, 4.18579999999326 Joules is equal to 1 calorie. Convert Units defines calories and joules as units of measure for energy and work.

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Full Answer

As Convert Units explains, the joule is represented by the symbol "J," and is sometimes referred to as a newton meter, watt second or coulomb volt. The unit's pronunciation, rhymes with the word "fool", and is named after the physicist James Prescott Joule. A single calorie is equal to the amount of energy required to warm 1 g of air-free water from 14.5 degrees Celsius to 15.5 C at a constant pressure of 101.325 kPa.

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