Vücut Kitle İndeksi (BMI) hesaplayarak sağlıklı kilo aralığında olup olmadığınızı öğrenin. BMI Prime, Ponderal Index ve sağlıklı kilo aralığı dahil.
Aşağıdaki gerekli bilgileri girin
Calculate your BMI to see your health status and recommendations.
Bazal Metabolizma Hızınızı (BMR) hesaplayarak vücudunuzun dinlenirken yaktığı kalori miktarını öğrenin
BMR ve aktivite seviyenize göre günlük kalori ihtiyacınızı hesaplayın
Çeşitli yöntemler kullanarak vücut yağ yüzdenizi tahmin edin
Boy ve cinsiyete göre ideal vücut ağırlığınızı hesaplayın
Du Bois formülü kullanarak vücut yüzey alanını (BSA) hesaplayın
Vücut Kitle İndeksi (BMI) hesaplayarak sağlıklı kilo aralığında olup olmadığınızı öğrenin. BMI Prime, Ponderal Index ve sağlıklı kilo aralığı dahil.
Bu hesaplayıcı, Sağlık ve Fitness konularıyla ilgili hesaplamaları hızlı ve doğru bir şekilde yapmanıza yardımcı olur. Değerlerinizi yukarıdaki forma girin ve sonuçlarınızı görmek için Hesapla'ya tıklayın.
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.
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.
| Classification | BMI range - kg/m² |
|---|---|
| Severe Thinness | < 16 |
| Moderate Thinness | 16 - 17 |
| Mild Thinness | 17 - 18.5 |
| Normal | 18.5 - 25 |
| Overweight | 25 - 30 |
| Obese Class I | 30 - 35 |
| Obese Class II | 35 - 40 |
| Obese Class III | > 40 |
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):
As can be seen from the list above, there are numerous negative, in some cases fatal, outcomes that may result from being overweight. Generally, a person should try to maintain a BMI below 25 kg/m², but ideally should consult their doctor to determine whether or not they need to make any changes to their lifestyle in order to be healthier.
Being underweight has its own associated risks, listed below:
In some cases, being underweight can be a sign of some underlying condition or disease such as anorexia nervosa, which has its own risks. Consult your doctor if you think you or someone you know is underweight, particularly if the reason for being underweight does not seem obvious.
Although BMI is a widely used and useful indicator of healthy body weight, it does have its limitations. BMI is only an estimate that cannot take body composition into account. Due to a wide variety of body types as well as distribution of muscle, bone mass, and fat, BMI should be considered along with other measurements rather than being used as the sole method for determining a person's healthy body weight.
BMI cannot be fully accurate because it is a measure of excess body weight, rather than excess body fat. BMI is further influenced by factors such as age, sex, ethnicity, muscle mass, body fat, and activity level, among others. For example, an older person who is considered a healthy weight, but is completely inactive in their daily life may have significant amounts of excess body fat even though they are not heavy. This would be considered unhealthy, while a younger person with higher muscle composition of the same BMI would be considered healthy. In athletes, particularly bodybuilders who would be considered overweight due to muscle being heavier than fat, it is entirely possible that they are actually at a healthy weight for their body composition.
Generally, according to the CDC:
The same factors that limit the efficacy of BMI for adults can also apply to children and adolescents. Additionally, height and level of sexual maturation can influence BMI and body fat among children. BMI is a better indicator of excess body fat for obese children than it is for overweight children, whose BMI could be a result of increased levels of either fat or fat-free mass (all body components except for fat, which includes water, organs, muscle, etc.). In thin children, the difference in BMI can also be due to fat-free mass.
That being said, BMI is fairly indicative of body fat for 90-95% of the population, and can effectively be used along with other measures to help determine an individual's healthy body weight.
Below are the equations used for calculating BMI in the International System of Units (SI) and the US customary system (USC) using a 5'10", 160-pound individual as an example:
BMI = 703 × mass (lbs) / height² (in)
= 703 × 160 / 70² = 23.0
BMI = mass (kg) / height² (m)
= 72.57 / 1.778² = 23.0
BMI prime is the ratio of a person's measured BMI to the upper limit of BMI that is considered "normal," by institutions such as the WHO and the CDC. Though it may differ in some countries, such as those in Asia, this upper limit, which will be referred to as BMIupper is 25 kg/m².
The BMI prime formula is:
BMI prime = BMI / 25
Since BMI prime is a ratio of two BMI values, BMI prime is a dimensionless value. A person who has a BMI prime less than 0.74 is classified as underweight; from 0.74 to 1 is classified as normal; greater than 1 is classified as overweight; and greater than 1.2 is classified as obese.
The Ponderal Index (PI) is similar to BMI in that it measures the leanness or corpulence of a person based on their height and weight. The main difference between the PI and BMI is the cubing rather than squaring of the height in the formula (provided below). While BMI can be a useful tool when considering large populations, it is not reliable for determining leanness or corpulence in individuals.
Although the PI suffers from similar considerations, the PI is more reliable for use with very tall or short individuals, while BMI tends to record uncharacteristically high or low body fat levels for those on the extreme ends of the height and weight spectrum.
PI = mass (lbs) / height³ (in)
= 160 / 70³ = 12.9
PI = mass (kg) / height³ (m)
= 72.57 / 1.778³ = 12.9