Online BMI Calculator
Calculate your BMI (Body Mass Index) with personalized health insights based on age and gender. Supports both metric and imperial units with body fat estimation and comprehensive health assessment.
How to Use the BMI Calculator
Choose Unit System
Select between metric (cm/kg) or imperial (ft/in/lbs) units based on your preference.
Enter Physical Measurements
Input your current height and weight. The BMI is calculated automatically as you type.
Add Personal Information (Optional)
Enter your age and gender to get body fat estimation and personalized health insights.
View Your Results
Get your BMI score, health status, body fat percentage (if age/gender provided), and personalized health recommendations.
Key Features
Advanced BMI Calculation
Calculate your Body Mass Index using the standard formula with support for both metric (kg/cm) and imperial (lbs/ft-in) units with real-time updates.
Body Fat Estimation
Get estimated body fat percentage using the Deurenberg formula based on your BMI, age, and gender for more comprehensive health insights.
Personalized Health Insights
Receive tailored health recommendations and insights based on your BMI category, age, gender, and body composition analysis.
Comprehensive Health Assessment
Visual health status indicators with color-coded BMI categories, detailed reference scale, and professional health recommendations.
What is BMI and Body Fat Percentage?
BMI (Body Mass Index) is a measure of body fat based on height and weight that applies to adult men and women. Our advanced calculator also estimates body fat percentage using the Deurenberg formula, which considers your BMI, age, and gender for more accurate health assessment. The tool provides personalized health insights and recommendations based on your individual characteristics.
Why Use Our BMI Calculator?
Advanced Health Assessment
Get BMI calculation, body fat estimation, and personalized health insights all in one comprehensive tool.
Dual Unit Support
Works with both metric (cm/kg) and imperial (ft-in/lbs) units, automatically converting measurements for accurate calculations.
Real-time Calculations
Instant BMI calculations as you type with visual health status indicators and color-coded results.
Personalized Insights
Age and gender-specific recommendations with detailed health insights based on your individual characteristics.
Frequently Asked Questions
What BMI categories are used in the calculator?
The calculator uses standard BMI categories: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obese (30-34.9), and Severely Obese (≥35).
How is body fat percentage calculated?
Body fat percentage is estimated using the Deurenberg formula, which considers your BMI, age, and gender. This provides a more comprehensive health assessment than BMI alone.
Can I use both metric and imperial units?
Yes, you can switch between metric (cm/kg) and imperial (ft-in/lbs) units. The calculator automatically converts and recalculates your BMI and body fat percentage.
Why do I need to enter age and gender?
Age and gender are optional but provide more accurate body fat estimation and personalized health insights. The Deurenberg formula uses these factors for better precision.
Is BMI accurate for everyone?
BMI is a useful screening tool but may not be accurate for athletes with high muscle mass, elderly individuals, or certain ethnic groups. Our calculator provides additional insights, but consult healthcare professionals for personalized advice.
What's considered a healthy BMI range?
A healthy BMI range is typically 18.5-24.9. However, optimal BMI can vary based on age, muscle mass, bone density, and other individual factors.
What health insights does the calculator provide?
The calculator provides personalized recommendations based on your BMI category, body fat percentage, age, and gender, including lifestyle suggestions and health risk assessments.
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Need Help?
Having trouble with this tool? Check our help section or contact support.