Body Fat Percentage Formula:
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Definition: This calculator estimates body fat percentage based on BMI (Body Mass Index) and age adjustment factors.
Purpose: It provides a quick estimation of body fat percentage which can be useful for health and fitness tracking.
The calculator uses the formula:
Where:
Explanation: The formula accounts for the fact that body fat percentage tends to increase with age even when BMI remains constant.
Details: Body fat percentage is a better indicator of health than BMI alone, as it distinguishes between fat and muscle mass.
Tips: Enter your BMI (calculate it first if needed) and your age in years. All values must be > 0.
Q1: How accurate is this estimation?
A: This provides a rough estimate. For precise measurements, consider methods like DEXA scans or skinfold calipers.
Q2: What's a healthy body fat percentage range?
A: For men: 6-24%, for women: 16-30%, but optimal ranges vary by age and fitness level.
Q3: Why does age affect body fat percentage?
A: Metabolism slows with age, and muscle mass tends to decrease, leading to higher body fat at the same BMI.
Q4: How do I calculate my BMI?
A: BMI = weight(kg) / (height(m))² or use our BMI calculator tool.
Q5: Should athletes use this calculator?
A: This method may underestimate body fat in very muscular individuals as BMI doesn't distinguish muscle from fat.