How do Joules and calories relate?

4.2 Joules make up a Calorie. One calorie is the amount of energy required to increase the temperature of one gram of water by one degree centigrade. 9. read more

One small calorie is approximately 4.2 joules (so one large calorie is about 4.2 kilojoules). The factor used to convert calories to joules at a given temperature is numerically equivalent to the specific heat capacity of water expressed in joules per kelvin per gram or per kilogram. read more

In chemistry we measure heat using two different units: calories and joules. A calorie is defined as the amount of energy needed to raise the temperature of one gram of water one degree Celsius. The “calorie” you are most familiar with is used to measure the energy content of food. read more

How to convert joules to calories. How to convert energy in joules (J) to calories (cal). Small & large calories. Small calorie (cal) is the energy needed to increase 1 gram of water by 1°C at a pressure of 1 atmosphere. read more

4.2 Joules make up a Calorie. One calorie is the amount of energy required to increase the temperature of one gram of water by one degree centigrade. 9.8 Joules is the energy required to lift a 1kg weight 1 meter from the formula for Potential Energy. E = mgh. read more