BMI Calculator
Your BMI, category, and healthy weight range — from height and weight in seconds.
Results update live as you type — BMI is a screening measure, not a diagnosis.
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Your BMI
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Category
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Healthy range (kg)
Healthy range = the weight span that keeps your BMI between 18.5 and 24.9 at your height.
Working…
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Fill in the input above and run the tool to get started.
Honest limits
BMI is a screening estimate, not a medical diagnosis. It cannot distinguish muscle from fat and does not apply to children, pregnant people, or athletes the same way. These results are estimates only — consult a healthcare professional before making health decisions.
How to use the BMI Calculator
- Enter your height — in centimeters, or switch to feet/inches.
- Enter your weight — in kilograms or pounds.
- Press Calculate BMI — your BMI, category, and healthy weight range appear.
Examples
Example
175 cm, 80 kg → BMI 26.1 (overweight), healthy range 56.7–76.3 kg — about 3.7 kg above the healthy band.
What this tool doesn't do
- BMI is a screening estimate, not a medical diagnosis — it cannot distinguish muscle from fat.
- Adult cutoffs do not apply to children, teens, or pregnant people; athletes should pair BMI with waist or body-fat measures.
- Results are estimates only — talk to a healthcare professional before making health decisions.
Frequently asked questions
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