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Calculate Body Fat Percentage UK

Body Fat Percentage Formula:

\[ Body Fat \% = 1.20 \times BMI + 0.23 \times Age - 10.8 \times Sex - 5.4 \]

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1. What is Body Fat Percentage?

Body Fat Percentage is a measure of the amount of fat in your body compared to your total body weight. It provides a more accurate assessment of health and fitness than weight or BMI alone, as it distinguishes between fat mass and lean body mass.

2. How Does the Calculator Work?

The calculator uses the Body Fat Percentage formula:

\[ Body Fat \% = 1.20 \times BMI + 0.23 \times Age - 10.8 \times Sex - 5.4 \]

Where:

Explanation: This equation estimates body fat percentage based on BMI, age, and sex, providing a quick assessment of body composition.

3. Importance of Body Fat Calculation

Details: Monitoring body fat percentage is crucial for assessing health risks, tracking fitness progress, and developing appropriate nutrition and exercise plans. High body fat percentage is associated with increased risk of various health conditions.

4. Using the Calculator

Tips: Enter your BMI (calculate separately if needed), age in years, and select your sex. All values must be valid (BMI > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this body fat calculation method?
A: While this formula provides a reasonable estimate, it may not be as accurate as more advanced methods like DEXA scans or hydrostatic weighing. It's best used for general guidance rather than precise measurement.

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

Q3: How often should I measure my body fat percentage?
A: For most people, measuring every 4-8 weeks is sufficient to track changes without becoming obsessive about daily fluctuations.

Q4: Are there limitations to this calculation method?
A: This formula may be less accurate for athletes, elderly individuals, pregnant women, and those with significantly above or below average muscle mass.

Q5: Should I use this calculation for medical purposes?
A: For medical diagnosis or treatment decisions, consult healthcare professionals who can use more precise measurement methods and consider your individual health circumstances.

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