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

How to calculate BMI:

BMI is calculated by dividing weight in kilograms by height in meters squared. For example, if you weigh 70 kilograms and are 1.73 meters tall, your BMI would be 23.4.

BMI categories:

  • Underweight: BMI less than 18.5
  • Normal: BMI 18.5 to 24.9
  • Overweight: BMI 25 to 29.9
  • Obese: BMI 30 or higher

Health risks associated with BMI:

People with a BMI in the overweight or obese range are at an increased risk for a number of health problems, including:

  • Heart disease
  • Stroke
  • Type 2 diabetes
  • High blood pressure
  • Cancer
  • Gallstones
  • Osteoarthritis
  • Sleep apnea

What to do if you are overweight or obese:

If you are overweight or obese, there are a number of things you can do to improve your health, including:

  • Eat a healthy diet
  • Exercise regularly
  • Get enough sleep
  • Manage stress

It is important to talk to your doctor about your weight and develop a plan for healthy weight loss.

Supplied by BMI Calculator UK

 Here are some tips for maintaining a healthy BMI:

  • Eat a healthy diet that is low in calories and high in nutrients.
  • Get regular exercise.
  • Aim for at least 150 minutes of moderate-intensity exercise or 75 minutes of vigorous-intensity exercise each week.
  • Limit your intake of processed foods, sugary drinks, and unhealthy fats.
  • Get enough sleep.
  • Manage stress.

By following these tips, you can improve your BMI and reduce your risk of developing chronic health problems.

Body Mass Index (BMI) is an important health guide because it is a simple and easy way to assess a person's weight in relation to their height. It is not a perfect measure of health, but it is a good starting point for identifying people who may be at risk for certain health conditions.


However, it is important to note that BMI is just one measure of health. Other factors, such as diet, exercise, and overall lifestyle, also play a role in determining a person's health.



A high BMI is associated with an increased risk of developing a number of health problems, including:

  • Heart disease
  • Stroke
  • Type 2 diabetes
  • Certain types of cancer
  • Sleep apnea
  • Osteoarthritis
  • Gallstones
  • Depression

A low BMI is also associated with some health risks, such as osteoporosis and fertility problems.