What is the body mass index (BMI)? NHS choices. How is BMI calculated manually Metric BMI Formula: weight (kg) / height (m) Example: Weight 80 kg, Height 185 cm (1.85 m) Calculation: 80 (1.85)2. Calculate body mass index, Healthy Weight Basics. Get advice from your midwife or GP if you're concerned about your weight. You should not use BMI as a measure if you're pregnant. For example, adults of South Asian origin may have a higher risk of some health problems, such as diabetes, with a BMI of 23, which is usually considered healthy. Your ethnic group can also affect your risk of some health conditions. BMI screens for weight categories that may lead to health problems, but it does not diagnose the body fatness or health of an individual. A high BMI can indicate high body fatness. Body Mass Index (BMI) and waist measurement can give you an idea about your health risks. Muscle is much denser than fat, so very muscular people, such as heavyweight boxers, weight trainers and athletes, may be a healthy weight even though their BMI is classed as obese. Body Mass Index (BMI) is a person’s weight in kilograms (or pounds) divided by the square of height in meters (or feet). The calculator works for adult men and women and may be unsuitable for children and teenagers.

It also shows your BMI category, as well as the BMI Prime index and how much overweight or underweight you are compared to the optimal weight range. As well as measuring your BMI, healthcare professionals may take other factors into account when assessing if you're a healthy weight. Use this online BMI calculator to easily calculate your Body Mass Index (BMI). BMI takes into account natural variations in body shape, giving a healthy weight range for a particular height.

Online bmi calculator