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Body Mass Index (BMI) Calculator

For an accurate calculation, please share a few basic details about yourself.

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Calculate Your BMI

Result BMI = 20.1kg/m² (Normal)
BMI = 20.1

Healthy BMI range: 18.5 kg/m² - 24.9 kg/m²

Healthy weight for the height: 59.9 kg - 81 kg

UNDERWEIGHTNORMALEXCESSWEIGHTOBESITYEXTREMELYOBESITY

BMI Introduction

BMI is a measurement of a person's leanness or corpulence based on their height and weight, and is intended to quantify tissue mass. It is widely used as a general indicator of whether a person has a healthy body weight for their height. Specifically, the value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese depending on what range the value falls between. These ranges of BMI vary based on factors such as region and age, and are sometimes further divided into subcategories such as severely underweight or very severely obese. Being overweight or underweight can have significant health effects, so while BMI is an imperfect measure of healthy body weight, it is a useful indicator of whether any additional testing or action is required. Refer to the table below to see the different categories based on BMI that are used by the calculator.

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Keep an Eye on Your BMI

With Pristyncare, you can achieve your desired BMI and goals. It's easier than you think!

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Healthy BMI for Adults

This is the World Health Organization's (WHO) recommended body weight based on BMI values for adults. It is used for both men and women, age 20 or older.

Height Height (cm) Healthy Weight Range (kg)
4'10"14740 – 54
5'0"15243 – 57
5'2"15746 – 61
5'4"16349 – 66
5'6"16852 – 70
5'8"17355 – 75
5'10"17859 – 79
6'0"18362 – 84
6'2"18866 – 89

BMI Chart for Adults

This is a graph of BMI categories based on the World Health Organization data. The colors represent the major BMI categories.

BMI chart
Health awareness
warning Important Health Information

Health Risks & Awareness

Understanding the potential health implications of being outside the healthy weight range

Cardiovascular Health

Excess weight increases risk of heart disease, high blood pressure, and stroke

Metabolic Conditions

Higher risk of Type 2 diabetes, insulin resistance, and metabolic syndrome

Preventive Action

Early awareness and lifestyle changes can significantly reduce health risks

BMI Table for Children and Teens, Age 2-20

The Centers for Disease Control and Prevention (CDC) recommends BMI categorization for children and teens between age 2 and 20.

Classification Percentile Range
Underweight <5%
Healthy weight 5% - 85%
At risk of overweight 85% - 95%
Overweight >95%
Body mass index chart
Overweight health risks

Risks Associated with Being Overweight

Being overweight increases the risk of a number of serious diseases and health conditions. Below is a list of said risks, according to the Centers for Disease Control and Prevention (CDC):

  • High blood pressure
  • Higher levels of LDL cholesterol (bad cholesterol), lower levels of HDL cholesterol (good cholesterol in moderation), and high levels of triglycerides
  • Type II diabetes
  • Coronary heart disease
  • Stroke
  • Gallbladder disease
  • Osteoarthritis, a type of joint disease caused by breakdown of joint cartilage
  • Sleep apnea and breathing problems
  • Certain cancers (endometrial, breast, colon, kidney, gallbladder, liver)
  • Low quality of life
  • Mental illnesses such as clinical depression, anxiety, and others
  • Body pains and difficulty with certain physical functions
  • Generally, an increased risk of mortality compared to those with a healthy BMI

Body Mass Index (BMI) Classification Chart

BMI Range (kg/m²) Weight Category What It Means
Below 18.5 Underweight Lower than healthy body weight
18.5 – 24.9 Normal Weight Healthy weight range
25.0 – 29.9 Overweight Above normal weight
30.0 – 34.9 Moderately Obese Increased health risk
35.0 – 39.9 Severely Obese High risk of health problems
40.0 and above Very Severely Obese Very high health risk
Frequently Asked Questions
What is the BMI formula?

The BMI is calculated using the following formula:

BMI = (weight in kilograms) / (height in meters)2

Here's how you can calculate your BMI using the metric system:

1. Measure your weight in kilograms (kg).
2. Measure your height in meters (m).
3. Square your height in meters (height)2.
4. Divide your weight in kilograms by the squared height in meters (weight / height)2

The resulting value is your BMI. It's a numerical representation of your body weight in relation to your height, and it's used to classify individuals into different weight categories, such as underweight, normal weight, overweight, and various degrees of obesity.

Is BMI different for men and women?

The BMI (Body Mass Index) formula itself is the same for both men and women. It's a simple mathematical calculation based on a person's weight and height. However, when interpreting BMI values, it is important to note that men and women may have different average body compositions. Men and women typically differ in terms of muscle mass, fat distribution, and other physiological factors. As a result, the same BMI value may have slightly different implications for men and women.

What are limitations to BMI calculator?

Age, sex, and muscle mass can impact the relationship between BMI and body fat. In addition, BMI does not differentiate between excess fat, muscle, or bone mass nor provides any indication of fat distribution among people.

Does body shape or body frame size affect BMI?

No, BMI is calculated on the basis of height and weight of the individual and does not take into account the body shape or frame size.

Can BMI tell how much weight to lose?

BMI provides a general idea of whether the individual is underweight, normal weight, or overweight. It does not give any specific guidance about how much weight should be reduced. It is best to consult with a healthcare professional for personalized advice.

How long does it take to reduce BMI?

The time taken by each individual to reduce the BMI varies on factors like the starting weight, diet, exercise, and the overall health. It is majorly important to focus on sustainable, healthy habits rather than the time period.

Can one solely depend on BMI to determine if they need to loose or gain weight?

Body mass index or BMI is not a complete accurate value as it only measures the body weight instead of the excess body fat. BMI is a useful tool to check the health of the individual but not the sole measurement scale

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