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BMI Calculator

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Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate body mass index (BMI) given height and weight values. Alternatively, you can use this calculator to find ideal body weight range for your height.

Leave weight field empty if you want to find the ideal weight for your height

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If you use imperial measurement system, use these unit converters for converting to metric equivalent: weight, height

Download: Use this BMI calculator offline with our all-in-one calculator app for Android and iOS.

BMI calculation

BMI is a measure of fitness and indicates if you are under-weight, over-weight or of normal weight. The formula for BMI is:

BMI = Weight (in kg) / [Height (in m) * Height (in m)]

The body mass index is simply your body weight (in kilograms) divided by your height (in meters) squared.

BMI values and weight classification - WHO
Classification Cut-off points BMI(kg/m2)
Underweight <18.50
Normal range 18.50 - 24.99
Overweight >=25.00
Obese >=30.00

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