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Body Fat Calculator
Understanding Body Fat Percentage
This calculator uses the US Navy Body Fat Formula to estimate body composition:
Formula for Men:
% Fat = 495 / (1.0324 - 0.19077 * log10(waist - neck) + 0.15456 * log10(height)) - 450
Formula for Women:
% Fat = 495 / (1.29579 - 0.35004 * log10(waist + hip - neck) + 0.22100 * log10(height)) - 450
| Category | Men | Women |
|---|---|---|
| Essential Fat | 2-5% | 10-13% |
| Healthy | 6-24% | 14-31% |
| Overweight | 25-30% | 32-39% |
| Obese | 30%+ | 40%+ |
Note: This measurement doesn't account for muscle mass. Always consult a health professional for accurate body composition analysis.