Understand your body weight status with our free Body Mass Index calculator
Body Mass Index (BMI) is a simple calculation using a person's height and weight to screen for weight categories.
BMI is a screening tool that indicates whether a person is underweight, healthy weight, overweight, or obese. While BMI doesn't measure body fat directly, research has shown that BMI correlates with more direct measures of body fat.
| BMI Range | Weight Status | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Possible nutritional deficiency and osteoporosis |
| 18.5 - 24.9 | Normal weight | Low risk (healthy range) |
| 25.0 - 29.9 | Overweight | Moderate risk of developing heart disease, high blood pressure, stroke, diabetes |
| 30.0 and above | Obese | High risk of developing heart disease, high blood pressure, stroke, diabetes |
If your BMI is under 18.5: You may need to gain weight. Consult with a doctor or dietitian for advice on healthy weight gain through proper nutrition.
If your BMI is 18.5-24.9: This is considered a healthy weight range. Maintain your weight through balanced diet and regular exercise.
If your BMI is 25-29.9: You may be at increased risk for certain health conditions. Consider lifestyle changes like increased physical activity and healthier eating habits.
If your BMI is 30 or over: You may be at high risk for obesity-related diseases. Consult with a healthcare provider about weight management strategies.
While BMI is a useful screening tool, it has some limitations:
For a more comprehensive assessment, consider body fat percentage measurements, waist circumference, and other health indicators.
This BMI calculator is intended for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or health objectives.
The results from this calculator are approximate and based on standard formulas. Individual health assessments should consider multiple factors beyond BMI alone.