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A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z   entire Web this site calorie The amount of heat neeed to raise the temperature of one gram of water, at or near the temperature of maximum density, by one degree centigrade. The standard calorie is also called a "small calorie" to distinguish it from the "large calorie," or "kilogram calorie," which is the amount of heat required to raise one kilogram of water one degree C; capitalization of the word calorie indicates a kilogram-calorie. Large calories, or Calories, are the type normally quoted when giving the energy value of foods or the amount of energy expended in exercise. 1 BTU (British thermal unit) = 252 calories = 1,054 joules Related entry    • calorific value Related categories    • UNITS Also on this site: Encyclopedia of Science Transport Concepts & Designs (partner site) BACK TO TOP