BMI Calculator

Body Mass Index (BMI) Calculator

Calculate your BMI (body mass index) by using the form below. Enter your weight and height and click the Calculate button to display your BMI result.

Measuring System

Height (Inches)

Example: 4 feet = 48 inches | 5 feet = 60 inches | 6 feet = 72 inches

Weight (Pounds)

Body Mass Index (BMI)

Normal BMI range

The calculations are based on WHO recommendations.

BMI Nutritional status

Below 18.5

Underweight

18.5–24.9

Normal weight

25.0–29.9

Overweight (Pre-obesity)

30.0–34.9

Obesity class I

35.0–39.9

Obesity class II

Above 40

Obesity class III

(NOTE: BMI should not be used to assess a child’s weight because the appropriate weight for a child varies greatly by age.)

Typically, people with higher BMIs have a greater likelihood of developing conditions such as heart disease, high blood pressure, sleep apnea, and type 2 diabetes. But many factors — including your family history, eating habits, and activity level — also influence your overall health.

BMI calculator results are grouped into the broad categories of underweight, healthy weight, overweight, and obese. As you review your results keep in mind that BMI has its limits and that BMI recommendations do differ based on gender and other variables. (For instance, BMI may underestimate body fat in an older person who has lost muscle tone.)

This BMI calculator should be used for informational purposes only and not as a substitute for a doctor or health care providers recommendations. If you have questions or concerns about your weight or BMI results, consult with your doctor or health care provider.

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