BMI Calculator
What is BMI?
Body Mass Index (BMI) is a simple measurement using your weight and height to work out if your weight is healthy. The BMI calculation divides an adult's weight in kilograms by their height in metres squared.
BMI is an internationally used measure of obesity. It's a good way to gauge whether your weight is in healthy proportion to your height.
BMI Ranges and Categories
For adults, BMI ranges are interpreted as follows:
- Below 18.5 - Underweight
- 18.5 to 24.9 - Normal weight
- 25 to 29.9 - Overweight
- 30 or greater - Obese
How to Use the Calculator
- Select your preferred unit system (Metric or Imperial)
- Enter your height (in centimeters or inches)
- Enter your weight (in kilograms or pounds)
- Click the "Calculate BMI" button to see your results
The calculator will display your BMI value and indicate which category you fall into using a color-coded system for easy interpretation.
Limitations of BMI
While BMI is useful as a general guide, it has some limitations:
- It doesn't account for muscle mass
- It may not be suitable for athletes or bodybuilders
- It doesn't consider age or gender
- It may not be appropriate for elderly people
- It doesn't measure body fat distribution
Frequently Asked Questions
How often should I check my BMI?
It's recommended to check your BMI every few months, or when you notice significant changes in your weight or body composition.
Is BMI accurate for everyone?
BMI is a general screening tool but may not be accurate for athletes, elderly people, or during pregnancy. Consult a healthcare provider for a more comprehensive health assessment.
What should I do if my BMI is outside the healthy range?
If your BMI falls outside the healthy range (18.5-24.9), consider consulting a healthcare provider or registered dietitian for personalized advice on achieving a healthy weight.