BMI Calculator - Check Your Body Mass Index for Free
Your BMI Results
Healthy weight range for your height: 54.7kg - 73.7kg
What This Means
Your weight is in the healthy range for your height. Maintain your weight with a balanced diet and regular physical activity.
How to Calculate BMI
BMI is calculated by dividing your weight in kilograms by the square of your height in meters. Our calculator does this automatically when you enter your measurements.
Understanding Your Results
| BMI Range | Category | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Possible nutritional deficiency and osteoporosis |
| 18.5 - 24.9 | Normal weight | Low risk (healthy range) |
| 25 - 29.9 | Overweight | Moderate risk of developing heart disease, high blood pressure, stroke, diabetes |
| 30 and Above | Obese | High risk of developing heart disease, high blood pressure, stroke, diabetes |
Limitations of BMI
While BMI is a useful screening tool, it has limitations:
- Doesn't directly measure body fat
- May overestimate body fat in athletes with high muscle mass
- May underestimate body fat in older adults who have lost muscle mass
- Doesn't account for differences in body composition between ethnic groups
For a more complete health assessment, consider measuring waist circumference, body fat percentage, and consulting with a healthcare professional.
Beyond BMI: Other Health Indicators
While BMI is a good starting point, these additional metrics provide a more complete picture of your health:
- Waist Circumference: Excess abdominal fat is a risk factor for health problems
- Body Fat Percentage: Measures actual fat content rather than weight
- Blood Pressure: High blood pressure increases cardiovascular risk
- Blood Sugar Levels: Important for diabetes screening
- Cholesterol Levels: High cholesterol increases heart disease risk
Frequently Asked Questions
Is BMI different for men and women?
BMI calculations are the same for adult men and women. However, women naturally tend to have more body fat than men at the same BMI.
How accurate is BMI for athletes?
BMI may overestimate body fat in athletes with significant muscle mass, as muscle weighs more than fat. Additional measurements like body fat percentage may be more appropriate.
Should children use this BMI calculator?
No, children and teens need BMI-for-age percentiles that account for growth patterns. We recommend consulting a pediatrician for accurate child BMI assessment.
What's a healthy BMI for older adults?
For adults over 65, a BMI between 23-29 may be healthier than the standard range, as slightly higher weight can protect against osteoporosis and provide reserves during illness.