BMI Calculator
Compute body mass index and the WHO health category.
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BMI is a general estimate used for population studies and broad health screening. It does not account for muscle mass, age, or sex. Always consult a doctor or nutritionist for personalized health advice.
How to use
- 1
Use an accurate scale to determine your current weight in kilograms.
- 2
Measure your height without shoes in centimeters.
- 3
Enter your weight and height into the respective input fields.
- 4
The tool automatically calculates your Body Mass Index score.
- 5
Compare your score against the provided World Health Organization (WHO) categories.
Formula
The standard metric formula for Body Mass Index is: BMI = weight in kilograms / (height in meters * height in meters).
Frequently asked questions
Is BMI an accurate measure of body fat?
BMI is a useful general screening tool, but it does not directly measure body fat. It cannot distinguish between muscle mass, bone density, and fat mass.
Who should not rely on the BMI scale?
Athletes with high muscle mass may be classified as 'overweight' even if they have low body fat. It is also less accurate for the elderly and pregnant women.
What is a healthy BMI score?
According to the World Health Organization, a normal and healthy BMI score falls between 18.5 and 24.9.