BMI Calculator
Calculate Body Mass Index (BMI) from height and weight in metric or imperial units, with the standard weight category it falls into.
22.9
Healthy weight
BMI is a general screening measure and doesn't account for muscle mass, bone density, or body composition. It's not a diagnosis; talk to a healthcare provider for personalized advice.
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Frequently asked questions
What formula does this use?+
The standard formula: weight (kg) ÷ height (m)², or for imperial units, 703 × weight (lb) ÷ height (in)².
Is BMI an accurate health measure?+
It's a useful general screening tool but doesn't account for muscle mass, bone density, age, sex, or body composition. Athletes, for example, can show a high BMI despite low body fat.
Should I make health decisions based on this alone?+
No, treat it as a starting reference point and talk to a healthcare provider for personalized advice.