Air Pressure at Altitude Calculator

How is Air Pressure at Altitude Calculated?

If you are looking to calculate the air pressure at a specific altitude we can help you with that. The formula for solving that is:

• P = Pressure


• Sea Level Pressure = The pressure at sea level in your specified unit


• PF = Pressure Factor, this value is calculated automatically based on your entries

Understanding Your Results

After hitting calculate you will get your results almost instantly. What will be displayed is the amount of pressure at the specific altitude that you specified.

For your convenience, we have included a simple dropdown menu for you to change the unit of pressure measurement of your answer which will also automatically convert your answer to that new value.

How to Use the Air Pressure at Altitude Tool

If you are trying to calculate the air pressure of a specific altitude then you are in the right place. It can easily be done with a tool like this. The steps include:

1. Enter the pressure at sea level of the area you are assessing. Choose the correct unit of pressure measurement from the dropdown menu if needed.


2. Enter the altitude at which you want to find the air pressure for.


3. Enter the current temperature for where you are. You do not need to enter the temperature of the specific altitude you are investigating.


4. Hit calculate and get your pressure result in less than a second!

Example Calculation

Let's say you are interested in finding out the air pressure at 20,000 feet in the sky. You know that the current sea level pressure in your area is 1,020 hPa so you enter that into the first field. We then can enter 20,000 into the altitude field and leave the feet unit of measurement as that. Currently, the temperature is 50 Fahrenheit so we enter that into the final field.

With all of our info entered into the calculator, we can hit the calculate button. We find that the altitude at 20,000 feet is about 461.9 hPa.