Use of
- Enter the key in centimeters (cm) and you can also enter a few points (e.g. 172.5).
- Enter the weight in kilograms (kg) units (e.g. 65.5).
- to calculate Pressing the button will determine your BMI numbers and obesity, and my key criteria will show the range of normal weight.
- If your current weight exceeds the upper limit of normal, you can also see how many kilograms the difference is.
The calculation of BMI.
BMI (Body Mass Index) is the value of weight divided by a quarter of the key.
BMI = Weight (kg) ÷ (key(m) × key(m))
For example, if you are 170cm tall and 65kg weighing, it will be 65 ÷ (1.7 × 1.7) = 22.5 this calculator shows up to the first few points. The judgment criterion is common in Korea. Asia-Pacific Standards for Obesity (2026 Standards)Follow it .
| by BMI | judged |
|---|---|
| Less than 18.5 | that body |
| 18.5 ~ 22.9 | Normally |
| 23 ~ 24.9 | Stage to Stage (stage to stage) |
| 25 ~ 29.9 | 1st Stage |
| 30 ~ 34.9 | 2nd Stage |
| More than 35. | Three stages of fever. |
The normal weight range reverses the normal BMI range. 18.5 × key(m)2 to 22.9 × key(m)2This is the range of normal weight (kg) corresponding to my height. With a height of 170cm, about 53.5 to 66.2kg is the range of normal.
Knowing good information.
WHO Western standards and other reasons. According to WHO’s international (Western) standards, BMI 25 or more is considered overweight and 30 or more is considered obese. However, according to studies that Asian people with the same BMI have higher body fat rates than Westerners and higher risk of obesity-related diseases such as diabetes and cardiovascular disease, the Asia-Pacific region has a stricter criterion for seeing 23 or more as obesity and 25 or more as obesity.
The BMI level. BMI uses only height and weight, so we can’t distinguish between muscle mass and body fat loss. Muscle mass people have at least a high BMI in body fat and, on the contrary, lean obesity (normal BMI but a high body fat rate) can’t keep up with it. It’s also difficult for older people, pregnant women and growing children to apply adult standards.
Check the hiccups. In Korea, adult men over 90cm and women over 85cm are judged as abdominal obesity. Even if the BMI is normal, the risk of metabolic syndrome can be increased, and the Obesity Society also recommends that the BMI and the abdomen be evaluated in conjunction with the body component analysis (including body fat and muscle mass) can be assessed more accurately.
This calculation is for health reference and is not a medical diagnosis. To decide whether obesity treatment or weight management is necessary, please consult your doctor and other specialists.
Frequently asked questions.
Is your BMI 23 obese?
According to the Asia-Pacific criteria, BMI 23 to 24.9 corresponds to the pre-obesity stage (overweight or at risk). It is not yet obesity, but it is the area where the risk of obesity-related disease begins to increase, so it is recommended to check your diet and exercise habits. Starting from 25 and above it is classified as Stage 1 obesity.
Why do foreign websites and judgment results differ?
The WHO Western standards are 25 or more overweight and 30 or more obese, but Asian people also have higher body fat rates and higher risk of diabetes and cardiovascular disease in the same BMI, according to a study that the Asia-Pacific standards are 23 or more overweight and 25 or more overweight. This calculator uses the Asia-Pacific standards common in Korea.
Is your BMI inaccurate?
Yes. BMI is calculated by weight and height only, so we cannot distinguish between muscle mass and body fat loss. Muscle mass athletes can be classified as obese if their body fat is at least above BMI 25. If you need an accurate body composition assessment, it is recommended to accompany body composition analysis (e.g. body fat) or body fat ratio measurement.
How to Calculate Normal Weight?
For example, if you have a height of 170cm, the range from 18.5×1.72=53.5kg to 22.9×1.72=66.2kg is the normal weight range. This calculator automatically calculates the range corresponding to the key you entered.
Are there any good indicators in addition to the BMI?
In Korea, adult men over 90cm and women over 85cm are considered to be abdominal masses. BMI is normal and abdominal masses can increase the risk of metabolic disease, so it is recommended to check BMI and abdominal masses together.