BMI Calculator
Calculate your Body Mass Index and learn what it means for your health
Calculate Your BMI
Your BMI Result
(<18.5) Normal
(18.5-24.9) Overweight
(25-29.9) Obesity
(30+)
Healthy BMI range: 18.5 kg/m² - 25 kg/m²
Healthy weight for your height: 59.9 kg - 81 kg
BMI Prime: 0.8
Ponderal Index: 11.1 kg/m³
About BMI Calculator
The Body Mass Index (BMI) calculator is a tool that helps you understand whether your weight is in a healthy range for your height. It's a simple calculation that provides a numerical value which can be categorized into underweight, normal weight, overweight, or obesity.
How to Use This Calculator
Using our BMI calculator is simple:
- Select your preferred unit system (Metric, Imperial, or Other)
- Enter your age and select your gender
- Input your height and weight
- Click the "Calculate" button
- Review your results and learn about your weight category
BMI Categories
The World Health Organization defines BMI categories as follows:
- Underweight: BMI less than 18.5
- Normal weight: BMI 18.5 to 24.9
- Overweight: BMI 25 to 29.9
- Obesity: BMI 30 or greater
Why BMI Matters
BMI is a useful screening tool to identify potential weight problems. While it doesn't directly measure body fat, it correlates with more direct measures of body fat. Maintaining a healthy BMI is important because:
- It can help reduce the risk of weight-related health conditions
- It's associated with better overall health outcomes
- It can serve as a motivator for maintaining a healthy lifestyle
Important Disclaimer
While BMI is a useful screening tool, it does have limitations. It may not accurately reflect body fat distribution or muscle mass. Athletes with high muscle mass may have a high BMI but not have excess body fat. Always consult with a healthcare professional for a comprehensive health assessment.