Body Fat Percentage Calculator
Estimate your body fat using the accurate U.S. Navy method.
What is Body Fat Percentage?
Body Fat Percentage (BF%) is the proportion of your body weight that comes from fat tissue. Unlike BMI, which only considers height and weight, body fat percentage gives a clearer picture of your health and fitness. This calculator uses the U.S. Navy method to estimate body fat using height, neck, waist, and hip (for females).
Body Fat Categories
| Category | Male (%) | Female (%) |
|---|---|---|
| Essential Fat | 2–5% | 10–13% |
| Athletes | 6–13% | 14–20% |
| Fitness | 14–17% | 21–24% |
| Average | 18–24% | 25–31% |
| Obese | 25%+ | 32%+ |
How to Use This Calculator
- Select your sex (Male or Female).
- Enter your height, neck, and waist measurements in centimeters.
- If female, also enter hip circumference.
- Click Calculate to get your estimated body fat percentage.
- Compare your result with the body fat categories above.
Frequently Asked Questions
1. How accurate is this calculator?
This tool uses the U.S. Navy formula, which provides a fairly reliable estimate. However, professional methods like DEXA scans or calipers are more precise.
2. Why is body fat percentage important?
It reflects your overall health and fitness more accurately than weight or BMI alone. High body fat can increase risk of heart disease, diabetes, and other conditions.
3. Is low body fat always good?
No. Extremely low body fat can be harmful, especially for women, as it affects hormones, bone density, and overall well-being.
4. Can I reduce my body fat percentage?
Yes. Regular exercise, a balanced diet, and healthy lifestyle choices can help reduce body fat gradually and sustainably.
