About Units

Calories: Calories (cal) are a unit of energy. Specifically, they are defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius. In nutrition, calories measure the energy content of food, with 1 food calorie (kcal) being equal to 1,000 small calories.

Foot pounds: Foot-pounds (ft·lbf) are a unit of work or energy in the British Imperial and US customary systems. One foot-pound is the amount of energy expended when a one-pound force is applied over a distance of one foot. This unit is often used in engineering and mechanical contexts to describe torque and work.