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Fitness Age Calculator

Formula

The formula to estimate fitness age is:

$\text{FA} = \text{AA} - \left( \frac{\text{V} - \text{AAV}}{0.3} \right)$

Where:

$\text{FA}$ is the estimated fitness age (years)
$\text{AA}$ is the actual age (years)
$\text{V}$ is the VO2 Max (ml/kg/min)
$\text{AAV}$ is the average VO2 Max for the actual age (ml/kg/min)

What is Fitness Age?

Fitness age is an estimate of your body’s physical age based on your cardiovascular endurance. It is a concept that reflects how well your body functions physically, compared to how well it should work given your age. A lower fitness age compared to your chronological age generally indicates better cardiovascular health and is associated with a lower risk of lifestyle-related diseases.

Example Calculation 1

Let's assume the following values:

Actual Age (AA) = 35 years
VO2 Max (V) = 45 ml/kg/min
Average VO2 Max for Age (AAV) = 40 ml/kg/min

Using the formula:

$\text{FA} = 35 - \left( \frac{45 - 40}{0.3} \right) = 35 - \left( \frac{5}{0.3} \right) = 35 - 16.67 \approx 18.33 \text{ years}$

The Estimated Fitness Age is approximately 18.33 years.

Example Calculation 2

Let's assume the following values:

Actual Age (AA) = 50 years
VO2 Max (V) = 35 ml/kg/min
Average VO2 Max for Age (AAV) = 30 ml/kg/min

Using the formula:

$\text{FA} = 50 - \left( \frac{35 - 30}{0.3} \right) = 50 - \left( \frac{5}{0.3} \right) = 50 - 16.67 \approx 33.33 \text{ years}$

The Estimated Fitness Age is approximately 33.33 years.