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BMI Calculator
Body Mass Index (BMI) is a quick screening measure that relates your weight to your height. This free BMI calculator works in both metric (cm/kg) and imperial (ft, in/lb) units. Enter your height and weight and it instantly calculates your BMI, tells you which category you fall into — underweight, normal weight, overweight, or obese — and shows the healthy weight range for your height. Note that BMI is a general screening tool, not a diagnosis; it doesn't account for muscle mass, bone density, or body composition, so it's worth discussing your results with a doctor for a fuller picture.
BMI Calculator
Body mass index, category and healthy weight range.
Also known as: body mass index calculator, ideal weight calculator, healthy weight calculator.
FAQ
What is a healthy BMI range?
For most adults, a BMI between 18.5 and 24.9 is considered a normal, healthy range.
Is BMI accurate for athletes?
Not always — BMI doesn't distinguish muscle from fat, so very muscular people can show a higher BMI despite low body fat.