BMI Calculator

Calculate your Body Mass Index and assess your weight category

Your BMI Result

0 BMI Score
Enter your measurements to calculate BMI
Underweight: Below 18.5
Normal weight: 18.5 - 24.9
Overweight: 25.0 - 29.9
Obese: 30.0 and above

Your BMI Result

0 BMI Score
Enter your measurements to calculate BMI
Underweight: Below 18.5
Normal weight: 18.5 - 24.9
Overweight: 25.0 - 29.9
Obese: 30.0 and above

How to Use the BMI Calculator

Our BMI calculator helps you determine your Body Mass Index quickly and accurately using either metric or imperial measurements:

📊 Metric Calculator (kg/cm)

  • Weight: Enter your weight in kilograms
  • Height: Enter your height in centimeters
  • Age & Gender: Optional fields for more personalized insights

📏 Imperial Calculator (lbs/ft)

  • Weight: Enter your weight in pounds
  • Height: Enter your height in feet and inches
  • Age & Gender: Optional fields for additional context

🎯 Understanding Your BMI

The BMI calculator uses the standard formula: BMI = weight (kg) / height (m)². Your result will fall into one of four categories:

  • Underweight: BMI below 18.5
  • Normal weight: BMI 18.5-24.9
  • Overweight: BMI 25.0-29.9
  • Obese: BMI 30.0 and above

Remember that BMI is a screening tool and doesn't directly measure body fat. Consult healthcare professionals for comprehensive health assessments.

Frequently Asked Questions

What is BMI and how is it calculated?
BMI (Body Mass Index) is a measurement that uses your height and weight to determine if you're a healthy weight. It's calculated by dividing weight in kilograms by height in meters squared (kg/m²).
Is BMI accurate for everyone?
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, so athletes or very muscular people may have high BMI but low body fat. It's also less accurate for older adults and certain ethnic groups.
What should I do if my BMI indicates I'm overweight?
If your BMI suggests you're overweight, consider consulting a healthcare provider for a comprehensive assessment. They can help create a personalized plan involving proper nutrition, exercise, and lifestyle changes.
Can I use BMI for children and teens?
BMI calculations for children and teens are different and use age and gender-specific percentile charts. This calculator is designed for adults aged 18 and over. Consult a pediatrician for children's BMI assessment.
How often should I check my BMI?
You can check your BMI whenever your weight changes significantly. For most people, checking monthly or quarterly is sufficient. Focus more on overall health trends rather than daily fluctuations.