Whether you want to know if you are obese, overweight, underweight, or healthy in terms of weight, our Body Mass Index (BMI) calculator may help you decide if your body mass index is acceptable or not. Simply enter your height and weight in the appropriate units into the calculator. Then click on the "Calculate" button to estimate your BMI.
Body Mass Index Calculator: The bigger your BMI, the more likely you are to suffer from illnesses such as high blood pressure, heart disease, type 2 diabetes, gallstones, and respiratory difficulties. There is no need to be concerned since you may use an online Body Mass Index (BMI) calculator to help you. In the part that follows, you will learn how to calculate the BMI and how it is useful.
A Body Mass Index (BMI) is an easy and convenient way to determine whether you are overweight, obese, underweight, or healthy in terms of weight. It depends on height and weight and is standardized for both men and women. The BMI is an approximate measure based on an overall average - if you have a large frame and are well-built, your BMI may be higher than an average person, but within the healthy range.
You can use your BMI score to evaluate risk factors for certain diseases and illnesses. The higher your BMI score, the higher your risk for ailments like high blood pressure, heart disease, type 2 diabetes, gallstones, breathing problems, and some types of cancer. Having a high BMI and being concerned about your health may be a sign you should see your doctor.
Body Mass Index value |
Remarks on the equivalent BMI |
Less than 20 |
Underweight |
Between 20 to 25 |
Healthy |
Between 25 to 30 |
Overweight |
Between 30 to 40 |
Obese |
Above 40 |
Morbidly Obese |
To calculate the BMI, we need mainly two parameters from a person. First is the body weight of a person & total height of a person.
The formula of BMI = (Body Weight) / (Body Height)^{2}
Here, weight is measured in kg & height is measured in meters.
BMI Formula = (Weight in Pounds ⨰ 703) / (Height in Inches)²
Begin using other calculators for your convenience, and go to Arithmetic Calculators for information regarding math concepts.
Example: If a person has a body weight of 85kg & body height of a person is 1.66m. Then what is the body mass index of a person?
Solution: Firstly, we will check what is given in the above example.
That is weight = 85kg & height = 1.66m
Now, to calculate the body mass index,
Formula of BMI = (Body Weight) / (Body Height)²
= (85) / (1.66)² = (85) / (2.75)
= 30.90
By referring to the BMI chart, we can say that BMI of this person lies between overweight & obese.
1. Is a body mass index of 21 good?
Yes, 21 can be considered as a normal BMI, because the normal BMI in adults is seen between 18.5 to under 24.9.
2. What is the normal BMI of a person?
The normal BMI of a person ranges between 18.5 and 24.9. So, if you are having BMI below 18.5, then you're in the underweight range and if you are having BMI between 25 and 29.9 then you will be considered in the overweight range.
3. How do you calculate BMI with pounds?
To calculate BMI with pounds and inches you can use this Body Mass Index formula,
BMI = (body weight in pounds) / (body height in inches) ⨰ 703.
4. What is the method to calculate your ideal body weight?
The ideal body weight can be computed using a simple method, the weight equivalent to an ideal body mass index of 22 kg/m² is considered the ideal body weight.