Math
BMI Calculator
Enter height and weight — get BMI, category, and ideal weight.
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BMI
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Ideal weight range:
Enter your height and weight
What does BMI Calculator?
A BMI calculator that computes body mass index from height and weight, shows a category across 4 levels, and displays your ideal weight range.
How to use BMI Calculator?
- Enter your height in centimetres.
- Enter your weight in kilograms.
- Your BMI value, category and healthy weight range appear instantly.
Key features
- Visual scale bar showing your position on the BMI spectrum
- Four categories: underweight, normal, overweight, obese
- Automatic calculation of the healthy weight range for your height
Frequently asked questions
What is a normal BMI?
A normal BMI range is 18.5 to 24.9. Below that is underweight; above 25 is overweight.
Is BMI an accurate health measure?
BMI is a widely used screening tool but does not account for body composition. Consult a doctor for medical advice.
Is this tool free?
Yes, this tool is completely free and requires no registration.
Is my data saved?
No. All calculations happen in your browser only — no data is sent to any server.