BMI Calculator

Calculate your Body Mass Index and understand your weight status with detailed insights.

Metric System
kg & centimeters
Imperial System
lbs & inches/feet

Enter Your Details

BMI Formula: weight (kg) / [height (m)]²
Your BMI: 24.2
Normal Weight

BMI Scale

Underweight
< 18.5
Normal
18.5 - 24.9
Overweight
25 - 29.9
Obese
30 - 34.9
Extreme
≥ 35

Statistics

0
Calculations
Metric
System
70 kg
Weight
170 cm
Height

Health Recommendations

Maintain Healthy Weight: Continue with your current balanced diet and regular exercise routine. Focus on maintaining your healthy habits.
Regular Check-ups: Schedule annual health screenings to monitor your health metrics and catch any potential issues early.
Balanced Nutrition: Focus on whole foods including fruits, vegetables, lean proteins, and whole grains for optimal nutrition.

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What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is weight in kilograms and m² is height in meters squared.

BMI Categories

BMI Range Category Health Risk
Below 18.5 Underweight Increased risk
18.5 - 24.9 Normal Weight Lowest risk
25.0 - 29.9 Overweight Increased risk
30.0 - 34.9 Obese (Class I) High risk
35.0 - 39.9 Obese (Class II) Very high risk
40.0 and above Extreme Obesity Extremely high risk

BMI Limitations

While BMI is a useful screening tool, it has important limitations to consider:

  • Muscle Mass: May overestimate body fat in athletes and individuals with high muscle mass
  • Age: May underestimate body fat in older persons who have lost muscle mass
  • Body Composition: Doesn't distinguish between fat and muscle mass
  • Ethnicity: Different ethnic groups may have different risk associations with BMI
  • Pregnancy: Not suitable for pregnant or breastfeeding women

Using BMI Effectively

For most accurate health assessment, use BMI alongside other measurements:

📏 Waist Circumference

Measures abdominal fat distribution

💪 Body Fat Percentage

Direct measurement of fat vs muscle

🩺 Blood Pressure

Important cardiovascular health indicator

🍽️ Dietary Habits

Quality and quantity of food intake

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Quick Reference

Underweight
BMI < 18.5 • Increased health risks
Normal Weight
BMI 18.5 - 24.9 • Lowest health risks
Overweight
BMI 25 - 29.9 • Moderate health risks
Obese
BMI ≥ 30 • High health risks

Tips & Information

Accurate Measurements
Measure height and weight consistently
Health Context
Consult healthcare professionals
Track Progress
Monitor changes over time
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