BMI Calculator
Calculate your Body Mass Index to understand your weight status
cm
kg
Your Body Mass Index is
22.86
Normal weight
Healthy weight range: 56.7 kg - 76.6 kg
●
< 18.5
18.5 - 24.9
25 - 29.9
≥ 30
Underweight
Normal
Overweight
Obese
📊 Understanding Your BMI Result
What is BMI?
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is:
BMI = weight(kg) / height(m)²
For imperial: BMI = (weight(lb) × 703) / height(in)²
BMI Categories
- Underweight: BMI < 18.5
- Normal weight: BMI 18.5 - 24.9
- Overweight: BMI 25 - 29.9
- Obese: BMI ≥ 30
Limitations
BMI doesn't account for:
- Muscle mass
- Bone density
- Fat distribution
- Age and gender differences
⚠️ Health Risks by BMI Category
Underweight
Nutritional deficiency, osteoporosis
Normal Weight
Lowest health risk, maintain
Overweight
Type 2 diabetes, hypertension
Obese
Heart disease, stroke, cancer risk
📝 Recommendations
Underweight
- Increase calorie intake
- Strength training
- Consult a dietitian
Normal Weight
- Maintain balanced diet
- Regular exercise
- Annual health checks
Overweight/Obese
- Gradual weight loss
- Regular physical activity
- Medical consultation
❓ Frequently Asked Questions
Q: Is BMI accurate for athletes?
A: BMI may classify athletes as overweight due to high muscle mass. Consider additional measurements like body fat percentage.
Q: How often should I check my BMI?
A: For most adults, checking every 3-6 months is sufficient unless undergoing significant lifestyle changes.
Q: Is BMI different for children?
A: Yes, children's BMI is calculated differently using age and sex percentiles. This calculator is for adults only.
Q: What's a healthy BMI for Asians?
A: Some health organizations suggest lower cutoffs for Asian populations: overweight ≥ 23, obese ≥ 27.5.