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Abdominal Circumference Percentile Calculator

Formulas

The formulas to calculate the Abdominal Circumference, Age, or Percentile are:

$\text{AC} = \left(\frac{P}{100}\right) \times (A \times 2)$

$\text{A} = \frac{\text{AC}}{\left(\frac{P}{100} \times 2\right)}$

$\text{P} = \left(\frac{\text{AC}}{A \times 2}\right) \times 100$

Where:

$\text{AC}$ is the abdominal circumference in centimeters
$\text{A}$ is the age in years
$\text{P}$ is the percentile

What is Abdominal Circumference?

Abdominal circumference is a measurement of the distance around the abdomen at a specific point, usually at the level of the belly button. It is an important indicator of health, as excessive abdominal fat is associated with an increased risk of various health conditions, including cardiovascular disease, type 2 diabetes, and metabolic syndrome. Monitoring abdominal circumference can help in assessing and managing these health risks.

Example Calculation

Let's assume the following values:

Abdominal Circumference (AC) = 80 cm
Age (A) = 10 years

Using the formula to calculate the percentile:

$\text{P} = \left(\frac{80}{10 \times 2}\right) \times 100 \approx 40.00 \%$

The Percentile is approximately 40.00%.