This free Body Fat Calculator uses the U.S. Navy Method to estimate your body fat percentage based on your height, neck, waist, and hip (for women). This is a quick way to evaluate your current fitness level and understand your body composition.
📘 What Is Body Fat Percentage?
Body fat percentage is the proportion of fat in your body compared to total weight. Keeping it within a healthy range is essential for optimal fitness and health.
🔢 Formula Used
U.S. Navy Body Fat Formula:
- Men: % Body Fat = 86.010 × log10(waist − neck) − 70.041 × log10(height) + 36.76
- Women: % Body Fat = 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387
📈 Result:
Enter your details above to calculate your body fat percentage.
🧠 Fat Level Categories
| Category | Men (%) | Women (%) |
|---|---|---|
| Essential Fat | 2–5 | 10–13 |
| Athletes | 6–13 | 14–20 |
| Fitness | 14–17 | 21–24 |
| Average | 18–24 | 25–31 |
| Obese | 25+ | 32+ |