BMI Calculator

Online BMI Calculator

The Body Mass Index (BMI) Calculator is a free utility to measure body fat based on your weight in relation to your height. It applies to most adult men and women aged 20 and older. It serves as a great starting point for assessing your health risks related to being underweight, overweight, or obese.

BMI Categories

• Underweight (Below 18.5): Being underweight could be a sign you are not eating enough or may be ill. Consider consulting a doctor.
• Normal Weight (18.5 - 24.9): This is the ideal health weight range for adults, suggesting a lower risk of health complications.
• Overweight (25.0 - 29.9): Being overweight may increase your risk of cardiovascular diseases. A balanced diet and regular exercise can help.
• Obese (30.0 and Above): People who are obese are at a much higher risk for health conditions like type 2 diabetes, heart disease, and sleep apnea.

How to Calculate BMI?

The formula depends on the measurement units you choose:

• Metric: BMI = Weight (kg) / [Height (m)]²
• Imperial: BMI = 703 × Weight (lbs) / [Height (in)]²

Our tool instantly does this math for you in your browser, maintaining your privacy by never sending data to our servers.