Body Fat Calculator
Calculate your body fat percentage using the US Navy method. Quick, accurate, and easy for men and women.
Men's & Women's Body Fat Categories
Men's Body Fat Categories
Women's Body Fat Categories
Understanding Body Fat Percentage
Body fat percentage is the proportion of your body made up of fat. Unlike BMI, which only considers height and weight, body fat percentage gives a clearer picture of your health and fitness. Essential fat is necessary for normal body functioning, while too much fat can increase health risks.
The US Navy method, used in this calculator, is a widely accepted way to estimate body fat using simple circumference measurements. It is practical, non-invasive, and suitable for most people.
Factors like age, gender, genetics, and lifestyle all influence your body fat percentage. Regular monitoring can help you track progress and make informed decisions about your health.
How This Tool Works
The Body Fat Calculator uses the US Navy formula, which requires measurements of your waist, neck, and height (plus hips for women). Enter your values, select your gender, and the tool instantly calculates your estimated body fat percentage. The result is categorized for easy interpretation.
All calculations are performed in your browser for privacy. The tool is designed for quick, accurate, and repeatable results, making it ideal for fitness tracking and health monitoring.
Key Features
- US Navy Method: Scientifically validated and widely used for body fat estimation.
- Gender Specific: Adjusts formula and required measurements for men and women.
- Instant Results: See your body fat percentage and category immediately after entering your data.
- Mobile Friendly: Fully responsive design for all devices.
- Privacy First: No data is stored or sent anywhere; all calculations are local.
- Easy to Use: Simple, clean interface for quick input and results.
- Educational: Includes detailed explanations and health guidance below the tool.
Common Use Cases
- Fitness Tracking: Monitor changes in body composition over time.
- Health Monitoring: Assess risk for obesity-related conditions.
- Sports & Athletics: Set and track body fat goals for performance.
- Weight Management: Guide diet and exercise plans.
- Medical Use: Support for doctors and nutritionists in patient assessments.
- Personal Motivation: Visualize progress and stay motivated.
Step-by-Step Guide
- Select Gender: Choose male or female to ensure the correct formula is used.
- Enter Measurements: Input your height, neck, and waist (plus hips for women) in centimeters.
- Click Calculate: Press the "Calculate Body Fat" button to see your results instantly.
- Review Results: View your body fat percentage, category, and a brief description.
- Read Guidance: Scroll down for detailed health information and tips.
- Repeat as Needed: Update your measurements regularly to track progress.