Check Your Body Mass Index
Body Mass Index (BMI) is a simple measure using your height and weight to estimate whether you’re at a healthy weight. Our free BMI calculator gives you instant results along with your BMI category and healthy weight range. While BMI doesn’t measure body fat directly, it’s a useful screening tool to identify potential weight-related health issues.
How to Use This Calculator
- Enter your height (feet/inches or centimeters)
- Enter your weight (pounds or kilograms)
- Optionally enter age and gender for context
- View your BMI and weight category
Understanding Your Results
BMI categories: Underweight (below 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obese Class I (30-34.9), Obese Class II (35-39.9), Obese Class III (40+). Note that BMI may not be accurate for athletes, elderly, or pregnant women.
Features
- Metric and imperial unit support
- WHO BMI classification
- Visual BMI scale indicator
- Healthy weight range for your height
- Health risk information
Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a measure of body fat based on height and weight. It's calculated by dividing weight in kilograms by height in meters squared.
What is a healthy BMI range?
According to WHO, a healthy BMI is 18.5-24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
BMI doesn't account for muscle mass, so athletes may have high BMI while being healthy. It's a screening tool, not a diagnostic measure.
Disclaimer
BMI is a screening tool, not a diagnostic measure. For a complete health assessment, consult with a healthcare provider who can evaluate factors like waist circumference, diet, physical activity, and family history.