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BMI Calculator

Calculate your Body Mass Index (BMI) to check if your weight is in a healthy range. Get instant results with health risk assessment and ideal weight range.

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Enter your weight and height

Your BMI result will appear here

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BMI Classification Table (WHO)

BMI RangeCategoryHealth Risk
Below 18.5UnderweightIncreased risk of malnutrition
18.5 – 24.9Normal WeightLow risk
25.0 – 29.9OverweightIncreased risk
30.0 – 34.9Obese (Class I)High risk
35.0 – 39.9Obese (Class II)Very high risk
40.0 and aboveObese (Class III)Extremely high risk

BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, or body composition. For a more complete health assessment, consult a healthcare professional.

For Asian populations, WHO recommends that overweight starts at BMI 23 and obesity at BMI 27.5, as health risks increase at lower BMIs in these populations.