BMI Calculator

Calculate adult BMI using metric or US units, see the standard category, and view a height-based healthy-weight range.

Calculate adult BMI with metric or US units.

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How to use BMI Calculator

Choose units, enter height and weight, then calculate. This tool uses standard adult BMI categories and is a screening estimate, not a diagnosis.

Private, local processing

Your input and results are not uploaded or stored. They remain in this browser tab.

Frequently asked questions

What does BMI Calculator do?

Calculate adult BMI using metric or US units, see the standard category, and view a height-based healthy-weight range.

Is my data uploaded?

Your input and results are not uploaded or stored. They remain in this browser tab.

What should I check when using BMI Calculator?

Choose units, enter height and weight, then calculate. This tool uses standard adult BMI categories and is a screening estimate, not a diagnosis.