BMI Calculator
Check your Body Mass Index (BMI) to assess your weight status.
Your BMI is
Your category is: N/A
BMI Categories:
- Underweight: < 18.5
- Normal weight: 18.5 – 24.9
- Overweight: 25 – 29.9
- Obesity: ≥ 30
How to Use This Calculator
Enter Your Weight
Input your current weight in pounds or kilograms.
Enter Your Height
Input your height in inches or centimeters.
View Your BMI
Your Body Mass Index and category will be displayed instantly.
About the BMI Calculator
The Body Mass Index (BMI) is a simple numerical measure that is commonly used to classify underweight, overweight, and obesity in adults. It is calculated from your weight and height, providing a quick indicator of whether your weight is healthy relative to your height.
While BMI is a widely used screening tool, it\'s important to understand its limitations. It does not directly measure body fat or distinguish between muscle and fat mass. Therefore, highly muscular individuals (like athletes) might have a high BMI without being overweight, and older adults may have a healthy BMI but still have excess body fat. Despite these limitations, it remains a valuable tool for assessing population health and can serve as a useful starting point for individual health assessments.
Frequently Asked Questions
Q: What is BMI?
A: BMI stands for Body Mass Index. It\'s a measure that uses your height and weight to work out if your weight is healthy.
Q: How is BMI calculated?
A: BMI is calculated by dividing your weight in kilograms by the square of your height in meters (kg/m²). Our calculator handles the conversions for you if you input in pounds and inches.
Q: Is BMI accurate for everyone?
A: BMI is a useful screening tool for most adults, but it has limitations. It may not be accurate for athletes, pregnant women, or the elderly, as it doesn\'t distinguish between muscle and fat mass.
Q: What are the health risks associated with high BMI?
A: A high BMI can be associated with an increased risk of chronic diseases such as heart disease, stroke, type 2 diabetes, and certain cancers.
Q: What are the health risks associated with low BMI?
A: A low BMI (underweight) can also pose health risks, including weakened immune function, fragile bones, anemia, and nutrient deficiencies.
Q: Should I rely solely on BMI for my health assessment?
A: No, BMI is just one tool. It should be used in conjunction with other health assessments, such as waist circumference, body fat percentage, and discussions with a healthcare professional, for a comprehensive health evaluation.