⚖️ BMI Age Calculator
Calculate your Body Mass Index (BMI) and see how it compares to age-adjusted percentiles. Find out if your BMI is healthy for your age group.
📖 How It Works
📝 Enter Your Details
Select your birth date and enter your weight and height. The calculator computes your Body Mass Index using the standard formula: weight (kg) / height2 (m2).
📊 BMI Categories
Your BMI is classified into standard WHO categories: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), Obese (30+).
🎯 Age Adjustment
BMI interpretation changes with age. Children use percentile charts, adults have different risk thresholds, and seniors may benefit from slightly higher BMI ranges.
🩺 Health Context
BMI is one of many health indicators. Use it alongside waist circumference, physical activity, diet quality, and medical checkups for a complete picture.
💡 Why It Matters
🏥 Health Screening
BMI is a widely used screening tool that helps identify potential weight-related health risks early, enabling timely intervention and lifestyle adjustments.
📈 Track Changes
Regular BMI monitoring helps you track changes in your body composition over time, providing motivation and data for weight management goals.
👨👩👧👦 Family Health
Understanding BMI across all age groups in your family helps establish healthy habits early for children and maintain wellness through adulthood and senior years.
📊 BMI Reference Chart
| BMI Range | Category | Health Risk |
|---|---|---|
| < 18.5 | Underweight | Increased (malnutrition, osteoporosis) |
| 18.5 - 24.9 | Normal Weight | Low |
| 25.0 - 29.9 | Overweight | Increased |
| 30.0 - 34.9 | Obese Class I | High |
| 35.0 - 39.9 | Obese Class II | Very High |
| 40.0+ | Obese Class III | Extremely High |
Reference: World Health Organization (WHO) BMI classification guidelines.