🏃♂️ BMI Calculator
Calculate your Body Mass Index (BMI) to determine if you're at a healthy weight. BMI is a widely used screening tool to categorize weight status and assess potential health risks associated with being underweight, normal weight, overweight, or obese.
📊 Your Information
| 👤 Age: | |
| ⚧ Gender: | |
| 📏 Height: |
ft
in
or cm |
| ⚖️ Weight: |
lbs
or kg |
📋 BMI Categories
| BMI Range | Category | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Increased |
| 18.5 - 24.9 | Normal | Minimal |
| 25.0 - 29.9 | Overweight | Increased |
| 30.0 and above | Obese | High |
🔬 About Body Mass Index (BMI)
BMI is a person's weight in kilograms divided by the square of height in meters. It's a useful screening tool, but it doesn't directly measure body fat or account for muscle mass, bone density, overall body composition, and racial and sex differences.
📐 BMI Formula
Metric: BMI = weight (kg) / height² (m²)
Imperial: BMI = (weight (lbs) / height² (inches²)) × 703
⚠️ BMI Limitations
- 🏋️♂️ Athletes: May have high BMI due to muscle mass
- 👴 Elderly: May have normal BMI but low muscle mass
- 🧒 Children: BMI percentiles are used instead
- 🤰 Pregnancy: BMI calculations don't apply
- 🏃♀️ Body composition: Doesn't distinguish muscle from fat
💡 Health Recommendations
| Category | Recommendations |
|---|---|
| Underweight | Consult healthcare provider, increase caloric intake, strength training |
| Normal | Maintain current weight, regular exercise, balanced diet |
| Overweight | Gradual weight loss, increase physical activity, dietary changes |
| Obese | Medical supervision, structured weight loss program, lifestyle changes |
🔗 Related Calculators
Explore our other health calculators:
- 🧮 Body Fat Calculator - Calculate body fat percentage
- 🍎 Calorie Calculator - Daily caloric needs
- ⚖️ Ideal Weight Calculator - Target weight ranges
- 🥗 Macro Calculator - Macronutrient breakdown