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Body Fat Calculator By Age

Body Fat Percentage Formula:

\[ \text{Body Fat %} = (1.20 \times \text{BMI}) + (0.23 \times \text{age}) - (10.8 \times \text{sex}) - 5.4 \]

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1. What is the Body Fat Percentage Formula?

The Body Fat Percentage Formula estimates body fat percentage using BMI, age, and gender. It provides a quick assessment of body composition based on easily measurable parameters.

2. How Does the Calculator Work?

The calculator uses the Body Fat Percentage Formula:

\[ \text{Body Fat %} = (1.20 \times \text{BMI}) + (0.23 \times \text{age}) - (10.8 \times \text{sex}) - 5.4 \]

Where:

Explanation: The equation accounts for the relationship between BMI, age, gender and body fat percentage, with different coefficients for different demographic factors.

3. Importance of Body Fat Calculation

Details: Accurate body fat estimation is important for assessing health risks, monitoring fitness progress, and guiding nutrition and exercise programs.

4. Using the Calculator

Tips: Enter BMI (unitless), age in years, and select gender. All values must be valid (BMI > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this formula?
A: This formula provides a reasonable estimate but may not be as accurate as more advanced methods like DEXA scans or hydrostatic weighing.

Q2: What are healthy body fat percentages?
A: For men: 6-24% (athletes: 6-13%, fitness: 14-17%, average: 18-24%). For women: 16-30% (athletes: 14-20%, fitness: 21-24%, average: 25-30%).

Q3: How often should I measure body fat?
A: Monthly measurements are sufficient for tracking progress, as daily fluctuations can occur due to hydration and other factors.

Q4: Are there limitations to this formula?
A: Less accurate for athletes, elderly, and those with extreme body types. Doesn't account for muscle mass distribution.

Q5: Should I use this for medical purposes?
A: For medical diagnosis and treatment, consult healthcare professionals who can use more precise measurement methods.

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