Body Mass Index (BMI) Calculator

Calculate Your Body Mass Index

The Body Mass Index (BMI) is an individual’s weight in kilograms divided by the square of his/ her height in meters. It can be used as an indicator of body fatness and a method to reflect health condition.

UNITS:
GENDER
AGE
HEIGHT
ftin
WEIGHT
lb
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Note: This BMI calculator is used to serve as an informational tool only, and its results are based on averages. It should not be interpreted as specific medical advice. You should consult qualified institutions or doctors if you are looking for a professional check-up on your health condition.

Your Body Mass Index:
  • Underweight< 18.5
  • Normal18.5 - 24.99
  • Overweight25 - 29.99
  • Obese> 30

The BMI is frequently used to assess that if an individual's body weight departs from what is desirable for a person's height. The BMI can also suggest the risk for chronic disease although factors such as muscularity may affect BMI significantly.

According to WHO:
BMI less than 18.5 is considered underweight which may indicate malnutrition, an eating disorder, or other health issues.
BMI in the range of 18.5 - 24.99 is considered normal. Keep your active lifestyle on and maintain this healthy weight.
BMI equal to or greater than 25 is considered overweight and above 30 is considered obese. You are at high risk for chronic diseases, such as type 2 diabetes, heart disease, and high blood pressure.

Your Body Mass Index:

BMI for children is calculated in the same formula as it is for adults, but the range for children is different from that for adults. The Centers for Disease Control and Prevention (CDC) issued a categorization for children and teens between age 2 and 20, based on different ages and genders. The range is less than the 5th percentile is considered underweight and above the 95th percentile is considered obese.

CategoryPercentile Range
Underweight < 5%
Healthy weight 5% - 85%
At risk of overweight 85% - 95%
Overweight >95%

The Centers for Disease Control and Prevention (CDC) BMI-for-age percentiles growth charts:
1. Chart for boys
2. Chart for girls