Body Fat Percentage Formula:
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The Body Fat Percentage Caliper Calculator estimates body fat percentage using skinfold measurements and age. It applies the Jackson-Pollock formula to calculate body density, which is then converted to body fat percentage using the Siri equation.
The calculator uses the following equations:
Where:
Explanation: The equation accounts for the relationship between skinfold thickness, age, and body composition to estimate body fat percentage.
Details: Accurate body fat percentage estimation is crucial for assessing health risks, monitoring fitness progress, and developing appropriate nutrition and exercise plans.
Tips: Enter the sum of skinfold measurements in millimeters, age in years, and select gender. All values must be valid (sum > 0, age between 1-120).
Q1: What skinfold sites should be measured?
A: Common sites include chest, abdomen, and thigh for men; triceps, suprailiac, and thigh for women.
Q2: How accurate is this method?
A: When performed by a trained professional, skinfold measurements can provide reasonably accurate results (±3-4%).
Q3: What are healthy body fat percentage ranges?
A: For men: 6-24%; For women: 16-30%. Optimal ranges vary by age and fitness level.
Q4: How often should measurements be taken?
A: Every 4-8 weeks to track changes while allowing enough time for measurable progress.
Q5: Are there limitations to this method?
A: Less accurate for extremely obese or very lean individuals, and results can vary based on measurer technique.