This calculator allows you to estimate your Daily Energy Requirements which is the amount of calories that a human should take to perform its typical functions. The Daily Energy Requirements is based on three values: Basal Metabolic Rate (or BMR), Thermogenesis, Daily Energy Expenditure. The Basal Metabolic Rate (BMR) is the amount of energy expended daily by humans at rest. Rest is defined as existing in a neutrally temperate environment while in the post-absorptive state. The release, and using, of energy in this state is sufficient only for the functioning of the vital organs. Thermogenesis is the process of heat production in organisms. It occurs mostly in warm-blooded animals. The Daily Energy Expenditure, related to physical activity, is the greater variable that changes according to the level of physical activity, the body constitution, sex and age of the person. It happens, particularly in recent times, that an excessive caloric intake respect to the needs involves accumulation of fat and, consequently, increased weight. Conversely, if the individual eats less calories compared their consumption, the body is forced to consume the fat reserves to compensate for the lack of energy; in this case, we see a weight loss.

Calculate Your Daily Calorie Needs

Type in this field your bodyweight in pounds ( only integer )
  Set your activity level pushing the below buttons
  total calories calories from carbs calories from protein calories from fat  
      Remember: these results are only approximations.  

This calculator is built to give you an idea of what you should be eating. Use it as a guide, but always meets a nutritionist if you plan to change your eating habits to be sure you're safe.