Body Fat Calculator
Precisely estimate your body fat percentage using the U.S. Navy formula
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FAQ
What is the U.S. Navy body fat formula?
The U.S. Navy Body Fat Formula is a body fat estimation method developed by the United States Navy. It calculates body fat percentage using height, neck circumference, and waist circumference (plus hip circumference for women). It is widely regarded as a reliable method that requires no specialized equipment.
What is a normal body fat percentage range?
The normal body fat percentage for men is about 14-24%, and for women it is about 21-31%. Athlete level: 6-13% for men, 14-20% for women. Less than the essential fat (2-5% for men, 10-13% for women) is harmful to health; more than the normal range is obesity.
What is the difference between body fat percentage and BMI?
BMI only uses height and weight and cannot distinguish between muscle and fat. A muscular person may have a high BMI but normal body fat. Body fat percentage directly measures fat proportion, providing a more accurate assessment of body composition and health.
How to reduce body fat percentage?
The keys to reducing body fat percentage: 1) Maintain a caloric deficit (intake < consumption) 2) Increase weight training to maintain muscle mass 3) Combine it with aerobic exercise 4) Eat enough protein 5) Get enough sleep. It is recommended to lose no more than 0.5-1% of fat per week to avoid rapid weight loss.
Body Fat Percentage Category Reference
| Category | Male | Female |
|---|---|---|
| Essential Fat | 2% - 5% | 10% - 13% |
| Athlete | 6% - 13% | 14% - 20% |
| Fitness | 14% - 17% | 21% - 24% |
| Average | 18% - 24% | 25% - 31% |
| Obese | ≥ 25% | ≥ 32% |
* Data from the American College of Sports Medicine (ACSM), for reference only. Actual body fat may vary by individual
Financial Disclaimer
The results of this tool are for reference only and do not constitute investment advice. Actual values may vary due to financial institution policies, interest rate changes, and individual circumstances. Please consult a professional financial advisor before making any financial decisions.