under 18.5kg/m2 – you are considered underweight and possibly malnourished. 18.5 to 24.9kg/m2 – you are within a healthy weight range for young and middle-aged adults. 25.0 to 29.9kg/m2 – you are considered overweight. over 30kg/m2 – you are considered obese.
World Health Organization (WHO):
Underweight: 16.0 - 18.4 kg/m^2. Normal weight: 18.5 - 24.9 kg/m^2. Overweight: 25.0 - 29.9 kg/m^2. Moderately Obese: 30.0 - 34.9 kg/m^2.
Body Mass Index
A BMI of between 20 and 25 kg/m2 is considered to be ideal for good health. A BMI of over 25 kg/m2 might suggest that you are overweight. A BMI of less than 20 kg/m2 indicates that you might be slightly underweight and at increased risk of malnutrition.
Generally you are not Underweight because your BMI ( body mass index) is between 18.5 —24.9. Body Mass Index means is a measure of body fat based on your height and weight.
45 (kg) divided by 2.25 (height squared) = 20. This means a person with a height of 150cm and a weight of 45kg would have a BMI score of 20. According to the BMI, that person would be in the “healthy weight range”.
Your bmi is 21.1 which is categorized into normal weight as per your given details. So, there is nothing to worry about your weight, you are normal.
under 18.5kg/m2 – you are considered underweight and possibly malnourished. 18.5 to 24.9kg/m2 – you are within a healthy weight range for young and middle-aged adults. 25.0 to 29.9kg/m2 – you are considered overweight.
A weight under 100–110 pounds (50kg)
The CDC report that the average weight of a 12-year-old male is 89 lb , or about 40 kg.
Women with a BMI of less than 18.5 are considered underweight. The average woman's height is 5 feet, 4 inches. If you weigh 107 pounds or less at this height, you are considered underweight with a BMI of 18.4. A healthy weight range for that woman would be 108 to 145 pounds.
You can check if you're underweight by using our BMI healthy weight calculator, which shows your body mass index (BMI). If your BMI is below 18.5, this suggests that your weight may be too low.
Adult Body Mass Index or BMI
Or determine your BMI by finding your height and weight in this BMI Index Chart. If your BMI is less than 18.5, it falls within the underweight range. If your BMI is 18.5 to 24.9, it falls within the Healthy Weight range. If your BMI is 25.0 to 29.9, it falls within the overweight range.
The best measure of whether you are a healthy weight is the body mass index (BMI). This is calculated using your weight and your height. In adults, a healthy weight range is a BMI of 18.5 to 24.9. If your BMI is under 18.5 then you would be considered underweight.
From a clinical perspective, an individual is considered “too skinny” if they are deemed underweight. According to the Centers for Disease Control, an individual is underweight if their Body Mass Index (BMI) is below 18.5 [1].
BMI values of less than 18.5 kg/m2 are considered underweight. BMI values between 18.5 kg/m2 to 24.9 kg/m2 are healthy. BMI values between 25 kg/m2 to 30 kg/m2 are overweight. BMI values greater than 40 kg/m2 are considered obese.
Yes, it's fine. Here you can understand: Ideal Body Weight (IBW) according to height represents healthy weight based on BMI (Body Mass Index). As per your current bpdy weight (45.5 kg), you are in healthy category.
Being underweight is not good for you. It can leave you with low energy and affect your immune system. This means you could pick up colds and other infections more easily. Plus, you may be missing out on important vitamins and minerals like calcium and iron, which you need to grow and develop.
There are also different tiers of anorexia based on BMI ranging from mild (<17.5), moderate (16-16.99), and severe (15-15.99), to extreme (<15). A BMI below 13.5 can lead to organ failure, while a BMI below 12 can be life-threatening.
Muscle is denser than fat, and as it is more compact within your body, as you gain muscle mass, you end up looking thinner, no matter your physical weight. So, if you've been doing a lot of strength training lately, it's likely this is the reason that you're looking fantastic but not dropping those numbers.
If you are below 160 cm then 45kg is a good weight for you. If you are more than 160cm add 0,5kg for every cm, to find good weight for you. E.g. if you are 170cm when you should weight 50kg etc. It also depends how much muscles you have.
Ideal weight now 5kg more: 65kg for men, 55 for women.