Body Fat Formula:
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Definition: This calculator estimates body fat percentage based on BMI, age, and gender using established formulas.
Purpose: It helps individuals assess their body composition and health risks associated with body fat levels.
The calculator uses gender-specific formulas:
Where:
Explanation: The formula accounts for the relationship between BMI, age, and typical body fat distribution differences between genders.
Details: Body fat percentage is a better health indicator than weight alone, helping assess fitness levels and potential health risks.
Tips: Enter your gender, BMI (calculate separately if unknown), and age. All values must be valid (BMI > 0, age 1-120).
Q1: How accurate is this calculator?
A: It provides a reasonable estimate (±3-5%) but isn't as precise as professional methods like DEXA scans or hydrostatic weighing.
Q2: What's a healthy body fat percentage?
A: For men: 8-19% (athletes), 20-25% (acceptable); For women: 21-33% (varies by age and fitness level).
Q3: Why different formulas for genders?
A: Women naturally carry more essential body fat than men (for reproductive functions).
Q4: Can I use this for children?
A: No, these formulas are designed for adults (18+ years).
Q5: Where can I calculate my BMI?
A: Use our BMI Calculator tool or search for online BMI calculators.