What is the Body Mass Index (BMI) of a person who is 171 centimeters (cm) tall and weighs 77 kilograms (kg)?

From the Guidelines

The BMI for a person who is 171 cm tall and weighs 77 kg is 26.3, which falls into the overweight category. BMI (Body Mass Index) is calculated by dividing weight in kilograms by height in meters squared. In this case, 77 kg divided by (1.71 m)² equals 26.3. The standard BMI categories classify a BMI between 18.5-24.9 as normal weight, 25-29.9 as overweight, and 30 or above as obese, as supported by the American Cancer Society guidelines 1. Being in the overweight category suggests a moderate increased risk for weight-related health issues such as heart disease, type 2 diabetes, and high blood pressure. However, BMI is just one health indicator and doesn't account for factors like muscle mass, body composition, age, sex, ethnicity, and fat distribution. For a more comprehensive health assessment, consider consulting with a healthcare provider who can evaluate other metrics like waist circumference, body fat percentage, and overall lifestyle factors. According to the American Cancer Society guidelines 1, achieving and maintaining a healthy weight is crucial, and individuals who are overweight or obese should be encouraged and supported in their efforts to reduce weight.

Some key points to consider:

• The World Health Organization and other health organizations use the same BMI categories 1
• BMI is a useful indicator of health risks associated with excess weight, but it has its limitations, such as not accounting for muscle mass or body composition
• A healthcare provider can help assess overall health and provide personalized recommendations for achieving and maintaining a healthy weight
• The American Cancer Society guidelines 1 provide a comprehensive approach to achieving and maintaining a healthy weight, including balancing energy intake and expenditure, and making healthy food choices.

It's essential to note that while BMI is a useful tool, it should be considered in conjunction with other health metrics and lifestyle factors to get a comprehensive picture of an individual's health. Therefore, it is recommended that individuals who are overweight or obese, like the person in question with a BMI of 26.3, should consult with a healthcare provider to discuss strategies for achieving and maintaining a healthy weight.

From the Research

Calculating Body Mass Index (BMI)

To calculate the BMI of a person who is 171 centimeters (cm) tall and weighs 77 kilograms (kg), we use the formula: BMI = weight (kg) / height (m)^2.

Step-by-Step Calculation

• First, convert the height from centimeters to meters: 171 cm = 1.71 m
• Then, calculate the BMI: BMI = 77 kg / (1.71 m)^2
• Perform the calculation: BMI = 77 kg / 2.9241 m^2
• Final calculation: BMI = 26.3 kg/m^2

BMI Categories

According to the World Health Organization, as mentioned in 2, the BMI categories are:

• Underweight: BMI < 18.5
• Normal weight: BMI = 18.5-24.9
• Overweight: BMI = 25-29.9
• Obese: BMI ≥ 30

Classification of the Calculated BMI

Based on the calculation, a BMI of 26.3 falls into the "overweight" category.

Key Points

• The calculated BMI is 26.3 kg/m^2.
• This BMI falls into the "overweight" category, as defined by the World Health Organization 2.
• Other studies, such as 3, 4, 5, and 6, discuss various aspects of BMI, weight loss, and health outcomes, but the calculation of BMI is based on the formula provided in 2.