BMI is calculated using your weight and height (your weight divided by your height squared). Along with several other factors, like your blood pressure and cholesterol, BMI can help estimate your risk of a heart attack or stroke. This calculator provides BMI and the corresponding BMI category for adults 20 and older. For children and teens 2 through 19 years, use the BMI Calculator for Children and Teens. Calculate your body mass index (BMI) with Bupa’s BMI calculator. Work out if you’re a healthy weight and get the right advice to reach your ideal weight. BMI Calculator for men, women and children finds Body Mass Index given weight and height. BMI is a ratio of weight and height that indicates health risk due to overweight conditions. The Body Mass Index (BMI) Calculator can be used to calculate BMI value and corresponding weight status while taking age into consideration. Use the Metric Units tab for the International System of Units or the Other Units tab to convert units into either US or metric units. BMI is one potential health indicator and should be considered with other factors when assessing an individual's health. Persons may consider seeking advice from their health care providers about their BMI. This calculator is not a substitute for professional medical advice. Calculate Your BMI Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and… women. Your BMI is just one piece of the puzzle. It’s based on height and weight but doesn’t take into account your muscle mass, bone density, or body composition. Enter the patient’s height and weight in the BMI Calculator to calculate the Body Mass Index based on the estimated body fat. Use the BMI calculator for adults to work out your Body Mass Index. Health professionals commonly measure Body Mass Index (BMI) to assess whether patients are a healthy weight. It measures weight in relation to height to determine BMI category: Calculate your body mass index (BMI) Check an adult's or child's BMI to find out if they're a healthy weight. It's important to use the right calculator for adults (aged 18 and over) or children and teenagers (aged between 2 and 17).