Body Mass Index Calculator
The body mass index (BMI) is a screening measure that determines if a person is underweight, overweight, or obese, as well as whether they are at a healthy weight for their height. Most adult men and women aged 20 and over have a BMI, which is a measure of body fat based on their weight in relation to their height. It is used to estimate tissue mass. It's a standard metric for determining whether a person's weight is adequate for their height.
How to calculate BMI?
BMI calculator is a simple calculation done using the person's height and weight. To figure out your result, multiply your weight in kilograms by your height in meters squared. If you know how much you weigh in centimetres and how tall you are in inches, you can still calculate your BMI.
BMI Formula = kg/m2
Here,
kg = Person's weight in kilogrammes
m2 = Height in metres squared
To calculate your BMI, follow these steps:
- Enter your age
- Choose your gender
- To obtain the best results, measure and enter your exact height and weight
- Calculate your BMI
Understanding the BMI results
- Less than 18.5 = Underweight
- 18.5 to 24.9 = Healthy weight/ Normal BMI
- 25 to 29.9 = Overweight
- 30.0-34.9 = Obese
- 35 or Higher = Extremely Obese
Underweight: Being underweight indicates that you are not eating properly or that you are afflicted with sickness.
Healthy weight: Your weight is normal and maintain the same healthy weight by following the best diet.
Overweight: If you're overweight, stick to a healthy diet and do regular exercise.
Obese: Obesity and overweight are both classified as abnormal or excessive fat buildup that poses a health concern.
Overweight is defined as a BMI of 25 or higher and Obesity is defined as BMI of 30 or higher.
BMI for Men & Women
The result of BMI will determine the considerable amount of body fat in an individual and this will also allow the doctor to mitigate any health risk arising from the same. If a person is above the average result then he/she may be an obese person. Obesity can lead to some health issues.
| Standard Weight | BMI |
|---|---|
| Underweight | Below 18.5 |
| Healthy weight | 18.5-24.9 |
| Overweight | 25.0-29.0 |
| Obese | 30.0-34.9 |
| Extremely Obese | 35.0 and higher |
Benefits of BMI
It's a useful tool for calculating where a person will understand whether the weight falls on the scale from underweight to overweight. This will also help people in maintaining a moderate weight that can reduce the risk of:
- Type 2 diabetes
- Osteoarthritis
- Cardiovascular disease
- Stroke
Drawbacks of BMI
It's a useful tool for calculating where a person will understand whether the weight falls on the scale from underweight to overweight. This will also help people in maintaining a moderate weight that can reduce the risk of:
- The result is estimated based on height and weight such as BMI result in 5% to 6% error. This error occurs due to body reflects muscle and bone mass and not just the fat mass.
- Sometimes obese individuals will likely tend to underestimate their weight.
- Short height people may likely overestimate their height.
Frequently Asked Questions
What is the normal BMI?
A normal BMI ranges from 18.5 to 24.9. It means your weight is normal and maintain the same healthy diet.
How can I calculate my BMI?
To figure out your result, multiply your weight in kilograms by your height in meters squared. BMI Formula = kg/m2 (kg is the weight of the body and m2 is the height)
What does my BMI mean?
The body mass index (BMI) is a screening measure that determines if a person is underweight, overweight, or obese, as well as whether they are at a healthy weight for their height.
What is a good BMI for my age?
A BMI of 18.5 to 24.9 is considered optimum. Overweight is defined as a BMI of 25 to 29.9. Obesity is defined as a BMI of 30 or higher.
