BMI Calculator
Calculate your Body Mass Index in seconds and see where you fall on the health scale.
For general understanding only. BMI is a screening tool, not a medical diagnosis. Consult a doctor for health advice.
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Your BMI
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Frequently Asked Questions
What is BMI?
Body Mass Index is a number calculated from your height and weight, used as a broad screening tool for weight categories.
What are the BMI categories?
Under 18.5 = underweight, 18.5–24.9 = normal, 25–29.9 = overweight, 30+ = obese.
Is BMI accurate for athletes?
No. BMI doesn't distinguish muscle from fat, so muscular people can score high despite being lean. Use it as one signal, not the whole picture.
Track your results with our free TDEE & calorie calculator to see daily calorie needs.