Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method. This calculator provides an estimate based on common body measurements.
| Metric | Your Value | Notes |
|---|---|---|
| Body Fat Percentage | – | – |
| Fat Mass | – | – |
| Lean Body Mass | – | – |
| Input Weight | – | – |
Understanding Your Results
Your body composition includes both fat mass and lean mass. Maintaining a healthy body fat percentage is important for overall health and well-being.
General Recommendations
- Consult with a healthcare professional or a certified fitness trainer for personalized advice.
- Combine regular physical activity with a balanced diet for optimal body composition.
- Remember that this calculator provides an estimate. For precise measurements, consider methods like DEXA scans.
- U.S. Navy Method: This calculation is based on formulas developed by the U.S. Navy for body circumference measurements.
- Accuracy: While convenient, this method has a standard error. Results are estimates and can vary.
- Body Fat Categories (General):
- Essential Fat: Men 2-5%, Women 10-13%
- Athletes: Men 6-13%, Women 14-20%
- Fitness: Men 14-17%, Women 21-24%
- Acceptable: Men 18-24%, Women 25-31%
- Obese: Men >25%, Women >32%
About Body Fat Percentage
Body Fat Percentage (BFP) is the total mass of fat divided by total body mass, multiplied by 100. Body fat includes essential body fat and storage body fat. Essential body fat is necessary to maintain life and reproductive functions. Storage body fat is the accumulation of fat in adipose tissue, part of which protects internal organs in the chest and abdomen.
Why is it important?
Knowing your body fat percentage can be a better indicator of health than body weight alone. Too high or too low body fat can be associated with health risks. This calculator helps you get an estimate to understand your body composition better.
How is Body Fat Calculated Here?
This calculator uses the U.S. Navy body circumference method, developed by Hodgdon and Beckett in 1984. It uses gender, height, and circumference measurements (neck, waist, and hip for women) to estimate body fat percentage.
Formulas Used (measurements in cm):
- Men: %BF = 86.010 * log10(waist – neck) – 70.041 * log10(height) + 36.76
- Women: %BF = 163.205 * log10(waist + hip – neck) – 97.684 * log10(height) – 78.387
Once BFP is estimated, Fat Mass and Lean Body Mass are calculated using your total body weight.
Disclaimer: This calculator is for informational purposes only and should not be used as a substitute for professional medical advice. Consult a healthcare provider for any health concerns or before making any decisions related to your health or treatment.