Health calculator
BMI Calculator: Formula, Categories, and Examples
A BMI calculator estimates body mass index using weight and height. It is a quick screening number, not a full medical diagnosis.
BMI formula
BMI = weight in kilograms divided by height in meters squared. Example: 70 kg and 1.75 m gives 22.86.
BMI categories
Common categories are underweight, normal, overweight, and obese. These ranges are general references and may not fit every person.
FAQ
Is BMI accurate for athletes?
BMI can be less useful for athletes because it does not separate muscle mass from body fat.
Should BMI be used for medical decisions?
Use it as an estimate and consult a health professional for medical advice.