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BMI

BMI Calculator
Use this calculator to check your body mass index (BMI).
BMI Calculator
Unit type
Height
cm.
Please enter value between 125 and 225.
Weight
kg.
Please enter value between 10.0 and 500.0 ( one decimal ).
Height
ft.
in.
Please enter value between 4.2 and 7.3
Weight
lb.
st.
Please enter value between 22.0 and 1000.0 ( one decimal ).
Calculate BMI
Use this calculator to check your body mass index (BMI), which can be a helpful tool in determining your weight category. Or, use it to calculate your child’s BMI.

What is BMI?

Body Mass Index (BMI) is a simple and widely used method to assess whether a person’s weight is appropriate for their height. It helps estimate body fat by using height and weight as key factors, offering a quick indication of overall body composition. While it does not directly measure body fat or account for muscle mass, BMI serves as a useful starting point for understanding general health and fitness levels.
Based on the calculated BMI value, individuals are categorized into ranges such as underweight, normal weight, overweight, or obese. These categories may vary slightly depending on age, region, and health guidelines, and can include further classifications for more precise evaluation. Although BMI is not a perfect measure, it is an effective screening tool that highlights potential health risks and helps determine if further medical assessment or lifestyle changes may be needed.

BMI Chart

Body Mass Index (BMI) is a widely used indicator to assess whether an individual has a healthy body weight relative to their height. Although BMI does not measure body fat directly, it serves as a reliable screening tool for identifying potential weight-related health risks. Calculate your BMI using your height and weight, and refer to the chart below for classification.

The table below presents BMI classifications for adults aged 20 years and older. BMI values are calculated and interpreted equally for both men and women.

The table below presents BMI classifications for children and adolescents aged 2–20 years, based on CDC BMI-for-age percentile guidelines.
BMI Calculator
Use this calculator to check your kid's body mass index (BMI).
Unit type
Select gender
Age
yr.
mth.
Please enter value between 0 and 19 years.
Height
cm.
Please enter value between 40 and 225.
Weight
kg.
Please enter value between 1.0 and 250.0 ( one decimal ).
Height
ft.
in.
Please enter value between 1.4 and 7.3
Weight
lb.
st.
Please enter value between 2.3 and 500.0 ( one decimal ).
Calculate BMI
Use this calculator to check your body mass index (BMI), which can be a helpful tool in determining your weight category. Or, use it to calculate your child’s BMI.

BMI Formula

The standard formula to calculate BMI looks like this.

BMI= Your weight / (height^2)

To understand this, let’s assume, your height is 177 cm or 1.77 m and your weight is 70 kg.

Therefore as per the formula above, your BMI will be

BMI= 70/ (1.77*1.77)= 22.36

So, according to the body weight index calculator, your BMI falls between 18.5 and 25 which means you are healthy.