BMI Calculator
Calculate your Body Mass Index (BMI) to assess your weight status.
The Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m², where kg is a person's weight in kilograms and m² is their height in meters squared.
BMI is a screening tool that can indicate whether a person is underweight, a healthy weight, overweight, or obese. While it's a useful general indicator, it doesn't account for muscle mass, bone density, overall body composition, or ethnic differences, so it should be used as a guide rather than a definitive health assessment.
Your BMI can give a general idea about your health risks related to weight. Here’s a breakdown of categories:
- Underweight (BMI < 18.5): May indicate nutritional deficiencies or other health issues.
- Normal weight (18.5 - 24.9): Generally considered healthy for most adults.
- Overweight (25 - 29.9): Increased risk of heart disease, diabetes, and other health problems.
- Obesity (BMI ≥ 30): Higher risk of serious conditions such as heart disease, type 2 diabetes, and certain cancers.
Always consult with a healthcare professional for a full health evaluation.
- Enter your weight and select the correct unit (kg or lbs).
- Enter your height in either centimeters or feet/inches.
- Click Calculate BMI to see your BMI and category.
- Compare it with the table above to understand your weight status.
1. Is BMI an accurate health measure?
BMI is a good screening tool but does not measure body fat directly. Athletes may have high BMI due to muscle mass.
2. Can children use this calculator?
This calculator is designed for adults. For children and teens, BMI is interpreted differently using growth charts.
3. How can I lower my BMI?
A balanced diet, regular physical activity, and healthy lifestyle choices can help. Consult a doctor before making major changes.