Body Mass Index (BMI) is a number that can be calculated mathematically using inches and pounds or meters and kilograms to show body weight adjusted for height. For adults aged 20 years or older, BMI numbers slot into the following categories:

18.5 = underweight 18.5-24.9 = normal weight 25-29.9 = overweight 30-34.9 = obesity level I 35-39.9 = obesity level II 40+ = extreme obesity

English Calculation Height:  feet and  inch(es) Weight:  pounds Your BMI:	Metric Calculation Height:  Meters     Weight:  Kilograms Your BMI:
Please use this calculator to determine your BMI. Note that a JavaScript-enabled Web browser is necessary for the calculator to function.