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Fry Formula Calculator

Formula

To calculate the Fry Score:

$\text{Fry Score} = \left( \frac{\text{Weight}}{72 \times \text{Serum Creatinine}} \right) \times (140 - \text{Age})$

Where:

$\text{Weight}$ is the body weight in pounds
$\text{Age}$ is the age in years
$\text{Serum Creatinine}$ is the level of creatinine in the blood, measured in mg/dL

What is the Fry Formula?

The Fry formula is a method used to estimate kidney function, specifically the glomerular filtration rate (GFR). It takes into account a person’s age, weight, and serum creatinine levels. The Fry score is particularly useful in clinical settings to adjust medication dosages and to monitor the progression of kidney disease.

Example Calculation 1

Let's assume the following values:

Weight = 150 lbs
Age = 45 years
Serum Creatinine = 1.2 mg/dL

Using the formula:

$\text{Fry Score} = \left( \frac{150}{72 \times 1.2} \right) \times (140 - 45) = 164.93$

The Fry score is 164.93.

Example Calculation 2

Let's assume the following values:

Weight = 180 lbs
Age = 60 years
Serum Creatinine = 1.5 mg/dL

Using the formula:

$\text{Fry Score} = \left( \frac{180}{72 \times 1.5} \right) \times (140 - 60) = 133.33$

The Fry score is 133.33.