Calculators
BMI calculator
Calculate body mass index in metric or US units, with healthy ranges.
Free to use · Runs in your browser · No signup
This tool works in your browser. Enable JavaScript to select files and create your download.
How to use BMI calculator
- Choose metric or US units.
- Enter your weight and height.
- Read your BMI, category, and the healthy weight range for your height.
What you need
Nothing to upload. Type or paste directly into the tool; results update as you go.
Your result
BMI value, category, and healthy weight range.
Before you start
BMI is a screening tool for adults. It does not measure body fat and is not a diagnosis. Speak with a healthcare professional about your health.
Questions about BMI calculator
How do I use BMI calculator?
Choose metric or US units. Enter your weight and height. Read your BMI, category, and the healthy weight range for your height.
What does BMI calculator produce?
BMI value, category, and healthy weight range.
What should I check before using BMI calculator?
BMI is a screening tool for adults. It does not measure body fat and is not a diagnosis. Speak with a healthcare professional about your health.
Is what I type sent anywhere?
No. The calculation runs in your browser, and the text or numbers you enter are not uploaded or stored.