BMI Calculator
Calculate your Body Mass Index and see if you're in a healthy weight range
Calculate Your BMI
Body Mass Index (BMI) is a measure of body fat based on height and weight. Use our calculator to find your BMI and understand what it means for your health.
Enter your height and weight above to calculate your BMI
Your BMI Result
What Your BMI Means
Healthy Weight Range for Your Height
A healthy BMI is between 18.5 and 24.9. For your height, this corresponds to a weight between 50.0 kg - 67.4 kg.
BMI Limitations
BMI doesn't directly measure body fat and doesn't account for age, gender, ethnicity, muscle mass, or bone density. Athletes may have a high BMI due to muscle mass, not excess fat.
Consult a Professional
BMI is a screening tool, not a diagnostic tool. Always consult with healthcare professionals for a complete health assessment.
About BMI Calculator
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 metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. BMI applies to most adults 18-65 years.
BMI Categories
BMI Formulas
Metric Formula
Example: For a person who is 170 cm tall and weighs 70 kg:
BMI = 70 / (1.7)² = 70 / 2.89 = 24.2
Imperial Formula
Example: For a person who is 5'7" (67 inches) and weighs 154 pounds:
BMI = 703 × 154 / (67)² = 108,262 / 4,489 = 24.1
BMI Limitations
While BMI is a useful screening tool, it has several limitations:
- Muscle vs. Fat: BMI doesn't distinguish between muscle and fat. Athletes or people with high muscle mass may have a high BMI despite having healthy body fat levels.
- Age Considerations: BMI may not be as accurate for elderly people who have lost muscle mass.
- Ethnic Variations: Different ethnic groups may have different body compositions and health risks at the same BMI.
- Pregnancy: BMI is not applicable during pregnancy.
- Children and Teens: For children and teens, age and gender-specific growth charts should be used.
Beyond BMI
For a more comprehensive assessment of health, consider these additional measurements:
- Waist Circumference: Abdominal fat is a better predictor of some health risks than BMI alone.
- Body Fat Percentage: Directly measures the proportion of fat in your body.
- Waist-to-Hip Ratio: Indicates how fat is distributed in your body.
- DEXA Scan: Provides detailed body composition analysis.
Note: This calculator provides a general assessment based on BMI standards. For personalized health advice, consult with healthcare professionals who can consider your complete health profile.