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Online Body Fat Percentage Calculator
Calculate your body fat percentage effortlessly using the U.S. Navy Body Fat Formula. Ideal for fitness assessment, this tool estimates body fat based on your waist, neck, hip (female only), and height measurements.
Body Fat
Essential Fat
Athletes
Fitness
Average
Obese
| Body Fat Percentage | 19.7% |
| Body Fat Category | Average |
| Body Fat Mass | 34.7 lbs |
| Lean Body Mass | 99.8 lbs |
| Ideal Body Fat for Given Age | 12.7% |
| Body Fat to Lose to Reach Ideal | 12.3 lbs |
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What Is This Tool?
This calculator estimates body fat percentage using the U.S. Navy Body Fat Formula. By inputting your waist, neck, hip (for females), and height measurements, you can obtain a reliable approximation of your body fat percentage, useful for fitness tracking and health monitoring.
How to Use This Tool?
- Enter your waist and neck circumference measurements in centimeters
- If you are female, also input your hip circumference
- Provide your height in centimeters
- Click the calculate button to view your estimated body fat percentage
- Review the results and use them to support your fitness goals
Key Features
- Uses U.S. Navy Body Fat Formula tailored for males and females
- Accepts waist, neck, hip (female only), and height measurements
- Provides quick and easy estimation of body fat percentage
- Browser-based tool with no installation needed
- Helps support fitness assessments and health tracking
Examples
- Male example: Waist=90 cm, Neck=40 cm, Height=175 cm produces approximately 20% body fat
- Female example: Enter waist, neck, hip, and height values to get an accurate body fat estimate
- Use the calculator regularly to track changes in your body composition over time
Common Use Cases
- Fitness enthusiasts tracking body composition changes
- Military personnel meeting fitness standards
- Health coaches assessing client body fat levels
- Individuals monitoring personal health metrics
Tips & Best Practices
- Ensure accurate circumference measurements using a flexible tape measure
- Measure waist, neck, hip, and height consistently each time
- Input measurements precisely in centimeters for best estimation
- Use the tool alongside other health indicators for a complete assessment
Limitations
- Accuracy depends on precise and consistent measurement techniques
- This calculator provides estimations but not direct body fat measurements
- Results may vary based on individual body shapes and conditions
Frequently Asked Questions
- What measurements do I need to calculate body fat percentage?
- You need to provide waist and neck circumferences for males, and waist, neck, and hip circumferences for females, along with your height.
- Is this calculator accurate for all body types?
- The calculator provides a close estimation based on circumference measurements, but accuracy can vary depending on how precisely measurements are taken and individual body differences.
- Can I use different measurement units?
- For the most accurate results, please enter measurements in centimeters as the formula is based on these units.
Key Terminology
- Waist Circumference
- The measurement around the narrowest part of the waist, used in the body fat formula.
- Neck Circumference
- The measurement around the neck just below the Adam’s apple, important for the formula.
- Hip Circumference
- The measurement around the widest part of the hips, used only for females in this calculation.
- Height
- The vertical measurement of the body from feet to head, required for the formula.
- Body Fat Percentage (BF%)
- An estimate of how much fat is in the body as a portion of total body weight.