For informational purposes only. BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, age or sex. Consult a healthcare professional for medical advice.

Height (ft)

Height (in)

Weight (lb)

Frequently asked questions

What is BMI?

BMI (Body Mass Index) is a measure of body fat based on height and weight. It is calculated by dividing weight in kilograms by height in metres squared (kg/m²). It is used as a screening tool to identify possible weight problems in adults.

What is a healthy BMI?

For most adults, a BMI between 18.5 and 24.9 is considered healthy. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is considered obese. These thresholds may differ for certain ethnic groups.

Is BMI accurate?

BMI is a useful population-level screening tool but has limitations for individuals. It does not distinguish between muscle and fat, so athletes with high muscle mass may be classified as overweight. It also does not account for age, sex, ethnicity or fat distribution. Always consult a healthcare professional for a full assessment.

BMI Calculator

Frequently asked questions