BMI Calculator and How to Use a BMI Calculator
What is BMI?
BMI (Body Mass Index) is a numerical value derived from a person's weight and height. It helps to determine if a person is underweight, at a healthy weight, overweight, or obese. This information can help assess health risks related to weight and body fat percentage.
How is BMI calculated?
The formula used to calculate BMI is:
BMI = weight (kg) / height2 (m)
For imperial units, the formula is:
BMI = 703 x weight (lbs) / height2 (in)
Calculate Your BMI
Why Is A BMI Calculator Important?
It helps monitor weight status, assess health risks, plan weight loss or gain programs, and track the effectiveness of such programs.
Normal BMI for Adults
| BMI Category | BMI Range |
|---|---|
| Underweight | Less than 18.5 |
| Healthy Weight | 18.5 – 24.9 |
| Overweight | 25.0 – 29.9 |
| Obesity Class I | 30.0 – 34.9 |
| Obesity Class II | 35.0 – 39.9 |
| Obesity Class III | 40.0 or higher |
Frequently Asked Questions
- What is BMI? BMI is a measure of body fat based on weight and height.
- How is BMI calculated? BMI = weight (kg) / height2 (m).
- What does a high BMI mean? A high BMI means you may be overweight or obese, increasing the risk of health issues.
- Can BMI be inaccurate? Yes, it can be inaccurate for individuals with a lot of muscle mass or those who are older.
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