BMI & Body Fat Calculator
Disclaimer: This calculator is for informational purposes only and follows general health guidelines (e.g., CDC standards). It does not replace professional medical advice. Always consult a healthcare provider for accurate diagnosis and treatment.
Calculate your Body Mass Index (BMI), estimate body fat percentage, and understand your health category based on standardized guidelines. This tool also provides detailed insights, health notes, and tracks your BMI history over time with visual charts.
Use Cases
- • Track BMI and overall health status
- • Estimate body fat percentage (age & gender-based)
- • Monitor weight changes over time
- • Analyze health risks (underweight, overweight, obesity)
- • Maintain fitness or weight goals
Key Features
- • Accurate BMI calculation (CDC-based)
- • Optional body fat estimation
- • Metric & Imperial unit conversion
- • Health insights based on gender
- • Calculation breakdown (formula steps)
- • History tracking with local storage
- • Visual charts (BMI distribution)
- • Export results as text file
Formulas Used
- • BMI (Metric) = Weight (kg) / Height² (m²)
- • BMI (Imperial) = (Weight / Height²) × 703
- • Body Fat (Male) = 1.2 × BMI + 0.23 × Age − 16.2
- • Body Fat (Female) = 1.2 × BMI + 0.23 × Age − 5.4
These formulas are widely used in health and fitness assessments to estimate body composition and evaluate potential health risks.
BMI Classification
- • Below 18.5 → Underweight
- • 18.5 – 24.9 → Healthy Weight
- • 25 – 29.9 → Overweight
- • 30+ → Obese
Health Insights
- • Underweight may indicate nutritional deficiency
- • Healthy BMI is linked to lower health risks
- • Overweight increases risk of metabolic diseases
- • Obesity is associated with chronic conditions
- • Gender-specific insights for better guidance
Enter Measurements
Matches CDC Adult BMI Calculator (link). Use Convert Units for precise lb ↔ kg, in ↔ m conversion. Gender and age provide female-specific guidance.