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Body Fat Percentage Calculators

Body Fat Percentage Formula (Navy Method):

For Men: %Fat = 86.010 × log10(abdomen - neck) - 70.041 × log10(height) + 36.76
For Women: %Fat = 163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387

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1. What is a Body Fat Percentage Calculator?

Definition: This calculator estimates body fat percentage using body measurements based on the U.S. Navy method.

Purpose: It helps individuals track fitness progress and health metrics more accurately than BMI alone.

2. How Does the Calculator Work?

The calculator uses different formulas for men and women:

For Men: %Fat = 86.010 × log10(abdomen - neck) - 70.041 × log10(height) + 36.76
For Women: %Fat = 163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387

Explanation: These formulas correlate specific body circumferences with body fat percentage based on extensive research.

3. Importance of Body Fat Percentage

Details: Body fat percentage is a better health indicator than weight alone, helping assess fitness levels and potential health risks.

4. Using the Calculator

Tips:

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this method?
A: The Navy method is about ±3% accurate compared to professional methods like DEXA scans.

Q2: Why different formulas for men and women?
A: Men and women store fat differently, requiring gender-specific calculations.

Q3: What's a healthy body fat percentage?
A: For men: 6-24%, women: 16-30%, depending on age and fitness level.

Q4: When should I measure?
A: Measure at the same time of day (morning is best), under consistent conditions.

Q5: Can I use centimeters instead of inches?
A: The formula requires inches. Convert cm to inches by dividing by 2.54.

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