Enter the total altitude (ft) and the total pressure (atm) into the Calculator. The calculator will evaluate the Altitude Pressure Ratio.

## Altitude Pressure Ratio Formula

APR = A / P

Variables:

- APR is the Altitude Pressure Ratio (ft/atm)
- A is the total altitude (ft)
- P is the total pressure (atm)

To calculate the Altitude Pressure Ratio, divide the current altitude by the current pressure.

## How to Calculate Altitude Pressure Ratio?

The following steps outline how to calculate the Altitude Pressure Ratio.

- First, determine the total altitude (ft).
- Next, determine the total pressure (atm).
- Next, gather the formula from above = APR = A / P.
- Finally, calculate the Altitude Pressure Ratio.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

total altitude (ft) = 5

total pressure (atm) = 8