BMI Calculator
Body Mass Index — Check your healthy weight range
Your BMI Result
25.1
Overweight
Healthy weight range for your height: 125 - 169 lbs
BMI Categories
| Category | BMI Range | Health Risk |
|---|---|---|
| Underweight | Below 18.5 | Increased |
| Normal | 18.5 – 24.9 | Low |
| Overweight | 25.0 – 29.9 | Increased |
| Obese | 30.0 and above | High |
What is BMI and How is it Calculated?
Body Mass Index (BMI) is a simple screening measure that uses your height and weight to estimate body fat. The formula divides your weight by the square of your height. While BMI doesn't directly measure body fat, it correlates with more direct measures and is widely used by healthcare providers as an initial assessment tool.
BMI Formula
Metric: BMI = weight (kg) / height (m)²
Imperial: BMI = (weight (lbs) / height (in)²) × 703
Limitations of BMI
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, doesn't account for bone density, and may not be accurate for athletes, elderly individuals, or certain ethnic groups. For a complete health assessment, consult with a healthcare provider who can consider additional factors.
BMI and Health Insurance
Your BMI can affect health insurance premiums in some states. Maintaining a healthy BMI may qualify you for preferred rates. Some employers also offer wellness incentives for employees who maintain a healthy weight range. Understanding your BMI is the first step toward making informed health and financial decisions.