BMI stands for Body Mass Index. It is a simple calculation using height and weight to determine whether a person is underweight, normal, overweight, or obese.

BMI is a useful screening tool for weight categories but does not measure body fat directly. Factors like muscle mass can affect accuracy.

Does this calculator support metric and imperial units?

Yes. You can input your height and weight in metric (cm/kg) or imperial (ft/in, lbs) units.

What are the BMI categories?

The World Health Organization defines BMI categories as: Underweight (<18.5), Normal (18.5–24.9), Overweight (25–29.9), and Obese (30 or higher).

Toolzium

BMI Calculator

Enter height & weight, choose units, then calculate.

Inputs

Choose your units and provide your measurements.

Height

Example: 170 cm or 67 inch

Weight

Example: 65 kg or 143 lb

Results

Your BMI, category, and healthy weight range.

BMI

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