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Weight & Body

BMI calculator

Calculate your Body Mass Index using imperial or metric measurements. Find out your BMI category and healthy weight range in seconds.

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BMI calculator

Enter your measurements below to get your result

years
ft in
st lb
Enter your measurements
and press Calculate
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Under­weightHealthyOver­weightObese
Healthy weight range
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To reach healthy BMI
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UnderweightBelow 18.5
Healthy weight18.5 – 24.9
Overweight25 – 29.9
Obese30 and above
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This calculator is for informational purposes only and does not constitute medical advice. BMI is a screening tool, not a diagnostic measure. Individual factors such as muscle mass, age, and ethnicity can affect what BMI means for you. Always consult a qualified healthcare professional for personalised health advice.
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All calculations happen in your browser. We never store your data.
Science-backed
Formulas based on established research and clinical guidelines.
Mobile friendly
Works perfectly on any device — phone, tablet or desktop.