BMI Calculator

Body Mass Index

Enter your height and weight to calculate your body mass index.

Understanding Body Mass Index

This is a simple numerical measurement that evaluates whether a person has a healthy body weight in relation to their height. It's widely used as a screening tool to identify potential weight problems in adults.

How It's Calculated

Metric Formula: Weight in kilograms ÷ (Height in meters)²

Imperial Formula: (Weight in pounds ÷ (Height in inches)²) × 703

Categories for Adults

• Underweight: Below 18.5
• Healthy weight: 18.5 to 24.9
• Overweight: 25 to 29.9
• Obesity Class I: 30 to 34.9
• Obesity Class II: 35 to 39.9
• Obesity Class III: 40 or higher

Important Considerations

While this is a useful screening tool, it has several limitations:

• Doesn't directly measure body fat
• Doesn't account for muscle mass
• Doesn't consider fat distribution
• May not be appropriate for certain populations

For a more comprehensive health assessment, healthcare professionals often combine this measurement with other metrics like waist-to-hip ratio, body composition analysis, and blood tests.