body mass index calculator

Body Mass Index (BMI) Calculator

Use the Body Mass Index Calculator, to enter your height and weight to calculate your BMI classification.

BMI Calculator

What does the Body Mass Index Calculator show?

Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. View the BMI tables or use the tool below to compute yours.

What the BMI numbers mean

BMI (Body Mass Index)Condition
Below 18.5Underweight
18.5 – 24.9Normal Weight
25 – 29.9Overweight
30 and higherObese
Note: The BMI may not be accurate for people with greater muscle mass (such as athletes) or in older people and others who have lost muscle mass.

If you are overweight or obese, even a small weight loss (10% of your current weight) can lower your risk of several diseases. People who are overweight or obese have a greater chance of developing the following: 

  • Several types of cancer—including colorectal cancer and breast cancer (for women past menopause)
  • High blood pressure
  • High blood cholesterol or other lipid disorders
  • Diabetes
  • Heart disease
  • Stroke

Being very underweight – especially if you’ve had rapid or unintentional weight loss – can be a sign of health problems.

Your doctor can further assess your personal risk for serious diseases by considering your BMI, waist measurement, and other measures of health such as your blood sugar.

body mass index calculator data

How to use the BMI Calculator Data

Here are a few easy to understand action steps for you to follow for healthier outcomes.

Maintain a Healthy Weight

Maintaining a healthy weight is important for your heart health. Learn more about overweight and obesity.

Boost Physical Activity

Physical activity, exercise, and moving more can lower your risk for heart disease.

Eat a Healthy Diet

Eating a healthy diet is the key to heart disease prevention.

Know your health data

Knowing and tracking your heart health stats, BMI, and others can help you meet your heart health goals and stay happy and healthy.

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