BMI Calculator
Calculate your Body Mass Index and get personalized health advice
Your BMI Result
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Underweight
Normal
Overweight
Obese
Health Advice
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BMI Categories
| BMI Range | Category | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Possible nutritional deficiency |
| 18.5 - 24.9 | Normal weight | Low risk |
| 25.0 - 29.9 | Overweight | Moderate risk |
| 30.0 - 34.9 | Obesity Class I | High risk |
| 35.0 - 39.9 | Obesity Class II | Very high risk |
| 40.0 and above | Obesity Class III | Extremely high risk |
⚠️ Medical Disclaimer
This BMI calculator is for educational and informational purposes only. The results should not be considered as medical advice, diagnosis, or treatment recommendations. BMI is only one indicator for assessing weight status and cannot fully reflect an individual's health condition. If you have health concerns or questions, please consult with a qualified healthcare professional. This tool cannot replace professional medical examination and advice.
Frequently Asked Questions
BMI (Body Mass Index) Calculator is a tool that measures body fat based on height and weight. It's used to assess whether a person has a healthy body weight for their height. BMI is calculated by dividing weight in kilograms by height in meters squared (kg/m²). While BMI is a useful screening tool, it doesn't directly measure body fat and may not be accurate for athletes with high muscle mass.
For adults (18 years and older), BMI categories are generally the same regardless of age: Normal weight (18.5-24.9), Overweight (25.0-29.9), and Obese (30.0+). However, for children and teenagers (2-18 years), BMI is interpreted differently using age and gender-specific percentile charts. Older adults may have slightly different considerations, as some research suggests a BMI range of 23-30 may be optimal for people over 65.
What is the correct BMI for my age?