Body Mass Index Calculators

The Body Mass Index is a useful tool that measures whether you are overweight, underweight, or just right. Your weight alone is not enough to tell, as a tall, skinny man may easily weigh more than a short but rotund woman.  

BMI ranges

There are five basic ranges within the BMI scale:

· Underweight = less than 18.5

· Normal weight = 18.5 - 24.9

· Overweight = 25 - 29.9

· Obesity = 30 - 35

· Severe obesity = 35 and more

Basal Metabolic Rate is the amount of energy a human body uses when it is completely at rest. It's the amount of energy your body needs to support its vital functions: breathing, blood circulation, controlling body temperature, brain and nerve functions to name a few.  

People regularly use more energy than their Basal Metabolic Rate. It is because most people do not spend all day in bed without moving! Walking, running, working, talking, and even digesting are actions that require some extra energy greater than the Basal Metabolic Rate.

Your BMR accounts for about 60% to 75% of your Total Energy Expenditure (TTE), depending on your lifestyle and activity level. The Total Energy Expenditure is the total number of calories you burn every day. The rest of your TTE comes from the physical activities (walking, talking, eating, etc.) and food digestion. Physical activities account for about 20% of your Total Energy Expenditure but can vary a bit depending on how often you exercise for and its intensity.