BMI Calculator
Calculate your Body Mass Index (BMI) and understand your weight category based on your height and weight.
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Top cities where BMI calculations are checked
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Top countries where BMI calculations are checked
Calculation Statistics
See how many BMI calculations have been made over time
Understanding BMI
What is BMI?
Body Mass Index (BMI) is a measure of body fat based on height and weight. The formula is: BMI = weight (kg) / height (m)² or BMI = (weight (lb) x 703) / height (in)².
BMI Categories
Underweight: Below 18.5
Normal: 18.5 - 24.9
Overweight: 25 - 29.9
Obese: 30 and above
Limitations
BMI doesn't distinguish between muscle and fat. Athletes may have high BMI but low body fat. It also doesn't account for age, sex, or body composition differences.
Health Tips
Focus on overall health, not just BMI. Regular exercise, balanced diet, adequate sleep, and stress management are key to maintaining good health.
BMI Calculator Guides & Articles
Understanding Your BMI Results
Learn what your BMI number means and how to interpret it in the context of your overall health and fitness goals.
BMI for Athletes and Active People
Discover why BMI may not accurately reflect the health of muscular individuals and what alternatives exist.
Healthy Weight Management Tips
Practical advice for achieving and maintaining a healthy weight through balanced nutrition and regular exercise.
Frequently Asked Questions
A healthy BMI is generally considered to be between 18.5 and 24.9. However, this can vary based on factors like age, muscle mass, and ethnic background.
No, BMI has limitations. It doesn't distinguish between muscle and fat mass, so athletes may have a high BMI despite being healthy. It also doesn't account for age or sex differences.
Checking your BMI monthly or quarterly is sufficient for most people. More important is tracking trends over time rather than focusing on a single measurement.
Waist circumference, body fat percentage, and waist-to-hip ratio can provide more accurate health assessments. Consult a healthcare provider for comprehensive evaluation.