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Body Fat Percentage Formula:
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Body fat percentage is the total mass of fat divided by total body mass, multiplied by 100. It provides a more accurate assessment of health than weight or BMI alone, as it distinguishes between fat mass and lean body mass.
The calculator uses the body fat estimation formula:
Where:
Explanation: This formula provides a quick estimation of body fat percentage based on BMI, age, and gender. It's a useful screening tool but may not be as accurate as more direct measurement methods.
Details: Monitoring body fat percentage is important for assessing health risks, tracking fitness progress, and maintaining optimal body composition. High body fat percentage is associated with increased risk of various health conditions.
Tips: Enter your BMI value (calculated as weight in kilograms divided by height in meters squared), age in years, and select your gender. All values must be valid (BMI > 0, age between 1-120).
Q1: How accurate is this body fat estimation formula?
A: This formula provides a reasonable estimate for most people but may not be as accurate as more direct measurement methods like DEXA scans or hydrostatic weighing.
Q2: What are healthy body fat percentage ranges?
A: For men: 6-24% is generally considered healthy. For women: 16-30% is generally considered healthy. These ranges vary by age and fitness level.
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 estimation method?
A: This formula may be less accurate for athletes, elderly individuals, and those with very high or very low BMI values.
Q5: Should I use this for medical diagnosis?
A: This calculator provides an estimate only. For medical purposes, consult a healthcare professional who can use more precise measurement methods.