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BMI

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Body mass index from your height and weight, plus the weight range considered healthy for your height.

How this calculator works

BMI divides your weight by the square of your height (in pounds and inches, the result is multiplied by 703). A BMI under 18.5 is considered underweight, 18.5 to 24.9 healthy, 25 to 29.9 overweight, and 30 or more obese. Because it cannot tell muscle from fat, very muscular people and older adults can get misleading results, so doctors often pair it with waist size.

Disclaimer: This calculator is for general information only and is not medical or nutrition advice. Talk with your doctor or a registered dietitian before changing your diet, exercise, or treatment, especially if you have a health condition.

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