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What Is Obesity?

Overweight and obesity are labels for ranges of weight that are greater than what is generally considered healthy for a given height. The terms also identify ranges of weight that have been shown to increase the likelihood of certain diseases and other health problems.

For adults, overweight and obesity ranges are determined by using weight and height to calculate a number called the "body mass index" (BMI). BMI is used because, for most people, it correlates with their amount of body fat.

  • An adult who has a BMI between 25 and 29.9 is considered overweight.
  • An adult who has a BMI of 30 or higher is considered obese.

It is important to remember that although BMI correlates with the amount of body fat, BMI does not directly measure body fat. As a result, some people, such as athletes, may have a BMI that identifies them as overweight even though they do not have excess body fat.

Calculate Your Health - Free BMI Calculator

  • Heart Rate
  • BMI
  • Body Fat %
  • BMR
  • Calories
  • Summary
Target Heart Rate Calculator
Maximize the benefits of cardiovascular activity when you exercise in the zone of your target heart rate (THR).


Resting Heart Rate
Age

Lower Limit
Upper Limit

Body Mass Index Calculator
Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.


Metric (kg, cm)
Imperial (lbs, inches)
Height
Weight
BMI
Body Fat Calculator
Calculate your Body Fat as a percentage (lbs or kg - inches or cm).

Imperial (inches)
Metric (cm)
Male
Female
Hip
Height
Abdomen
Neck


Body Fat Percent
Basal Metabolic Rate Calculator
Basal Metabolic Rate Calculation.
Imperial (lbs, inches)
Metric (kg, cm)
Male
Female
Height
Weight
Age
BMR
Caloric Usage Calculator
Calculate your total energy expenditure in calories using your calculated BMR.
Sedentary
Lightly Active
Moderately Active
Very Active
Extra Active
Calculated BMR
Calories Burnt
Health Summary
This is your calculated health summary.
Target Heart Rate:
Body Mass Index:
Body Fat:
Basal Metabolic Rate:
Calories:
*Disclaimer: Results are typical but not guaranteed. Your actual results may vary. Real CalMWM patients shown with permission.

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