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Calculate Body Fat Percentage Skinfold Measurements

Body Fat Percentage Formula:

\[ \text{Body Density} = 1.10938 - 0.0008267 \times \text{sum} + 0.0000016 \times \text{sum}^2 - 0.0002574 \times \text{age} \] \[ \text{Body Fat \%} = \left( \frac{495}{\text{Body Density}} \right) - 450 \]

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years

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1. What is Body Fat Percentage Calculation?

Body fat percentage calculation using skinfold measurements is a method to estimate the proportion of fat in the body based on measurements taken at specific skinfold sites. This provides a more accurate assessment of body composition than simple weight measurements.

2. How Does the Calculator Work?

The calculator uses the following formulas:

\[ \text{Body Density} = 1.10938 - 0.0008267 \times \text{sum} + 0.0000016 \times \text{sum}^2 - 0.0002574 \times \text{age} \] \[ \text{Body Fat \%} = \left( \frac{495}{\text{Body Density}} \right) - 450 \]

Where:

Explanation: The equation calculates body density from skinfold measurements and age, then converts this density value to body fat percentage.

3. Importance of Body Fat Percentage

Details: Knowing your body fat percentage is crucial for assessing overall health, monitoring fitness progress, and determining appropriate weight management strategies. It provides more meaningful information than body weight alone.

4. Using the Calculator

Tips: Enter the sum of skinfold measurements in millimeters and age in years. Ensure measurements are taken accurately at standard skinfold sites for reliable results.

5. Frequently Asked Questions (FAQ)

Q1: What skinfold sites should be measured?
A: Common sites include triceps, chest, abdominal, suprailiac, and thigh. The specific sites may vary depending on the measurement protocol being used.

Q2: How accurate is skinfold measurement?
A: When performed by a trained professional, skinfold measurements can provide reasonably accurate results (±3-5% error margin). Accuracy depends on proper technique and consistent measurement sites.

Q3: 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: 14-20%, fitness: 21-24%, average: 25-30%).

Q4: How often should measurements be taken?
A: For tracking progress, measurements every 4-8 weeks are sufficient as significant changes in body composition take time to occur.

Q5: Are there limitations to this method?
A: Less accurate for extremely obese or very lean individuals, and results can vary based on the skill of the person taking measurements and hydration status.

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