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About the BMI Calculator
This BMI calculator computes your Body Mass Index from your height and weight. It shows your BMI value, places it in a standard weight category, and lists the healthy weight range for your height. The results include brief explanations of each classification.
The calculator uses the standard BMI formula: weight in kilograms divided by height in meters squared. Enter your height and weight, choosing metric or imperial units. For the most useful reading, measure your weight at the same time of day, such as in the morning before eating. BMI is a screening tool, not a diagnosis, so consider a healthcare professional for personal health decisions.
- Select your preferred unit system, metric or imperial.
- Type in your current height and weight.
- Read your BMI score, category, and healthy weight range.