1. What is a Body Fat Calculator?

Definition: This calculator estimates your body fat percentage based on body measurements using the US 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 the US Navy body fat formula:

Where density is calculated differently for men and women based on circumference measurements.

3. Importance of Body Fat Percentage

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

4. Using the Calculator

Tips: Measure circumferences at the narrowest point for neck and natural waist (at navel level). For women, hip measurement is taken at the widest point.

5. Frequently Asked Questions (FAQ)

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

Q2: What's a healthy body fat percentage?
A: For men: 6-24%, Women: 16-30%. Athletes typically have lower percentages.

Q3: Why different formulas for men and women?
A: Women naturally carry more body fat, particularly in the hip area.

Q4: How often should I measure?
A: Every 2-4 weeks to track progress, measured at the same time of day.

Q5: Can I use inches instead of cm?
A: The formula works with any unit as long as all measurements use the same unit.