BMI Calculator
Calculate Body Mass Index with health category
About BMI Calculator
Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.
- Underweight: BMI less than 18.5
- Normal weight: BMI 18.5 to 24.9
- Overweight: BMI 25 to 29.9
- Obese: BMI 30 or higher
- Choose height units (cm, m, ft, in) and weight units (kg, g, lbs, oz) independently
- Copy results to clipboard
Note: BMI is a screening tool and not a diagnostic tool. Consult a healthcare provider for personalized advice.
About BMI Calculator
Calculate Body Mass Index with health category
How to Use
Use this tool to calculate body mass index with health category. Simply input your data and get instant results.
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Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a numerical value derived from a person weight and height. It is used as an indicator of body fatness and overall health status.
How is BMI calculated?
BMI = Weight (kg) / (Height (m))². For imperial units: BMI = (Weight (lbs) / (Height (inches))²) × 703. The calculator handles both metric and imperial units.
What are the BMI categories?
Standard categories: Underweight (< 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obese (≥ 30). These ranges may vary slightly by organization and population.
Is BMI an accurate health indicator?
BMI is a useful screening tool but has limitations. It does not distinguish between muscle and fat mass, so muscular individuals may have high BMI without excess fat. Consult healthcare professionals for comprehensive health assessment.
What is a healthy BMI?
For most adults, a BMI between 18.5 and 24.9 is considered healthy. However, ideal ranges may vary based on age, sex, ethnicity, and other factors. Athletes may have higher BMI due to muscle mass.