Lifestyle
BMI Calculator
Enter your weight and height (metric or imperial) to get your BMI and the matching weight category. Calculated in your browser — a general health guide, not medical advice.
Weight (kg)
Height (cm)
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Enter weight and height
Categories (WHO): under 18.5 underweight · 18.5–24.9 normal · 25–29.9 overweight · 30+ obese. This is a general guide, not medical advice.
About BMI Calculator
Enter your weight and height (metric or imperial) to get your BMI and the matching weight category. Calculated in your browser — a general health guide, not medical advice. It's a free lifestyle tool from ChatGBT that runs right in your browser — no signup, no install, and no cost.
How to use BMI Calculator
- Enter your details in the fields above.
- Click Generate to run BMI Calculator.
- Copy or refine the result — run it as many times as you like.
Is BMI Calculator free?
Yes — BMI Calculator is completely free to use with no account required. Explore ChatGBT's full AI tools directory for more lifestyle and productivity tools.