Weather tools
Pressure Altitude Calculator
Calculates the pressure altitude, which is the altitude in the standard atmosphere where a given barometric pressure exists.
Before you use this tool
Use this if
- Calculates the pressure altitude, which is the altitude in the standard atmosphere where a given barometric pressure exists.
- You want a calculation that exposes its formula: Pressure Altitude ≈ Pressure Altitude + (1 - (Barometric Pressure / Standard Pressure)^0.190284) × 145366.45
- You already have Pressure Altitude, Barometric Pressure values to enter.
Skip this if
- You need an official emergency alert or life-safety instruction.
- You need a certified professional forecast instead of a calculator estimate.
When to use or skip it
Use this if
- Calculates the pressure altitude, which is the altitude in the standard atmosphere where a given barometric pressure exists.
- You want a calculation that exposes its formula: Pressure Altitude ≈ Pressure Altitude + (1 - (Barometric Pressure / Standard Pressure)^0.190284) × 145366.45
- You already have Pressure Altitude, Barometric Pressure values to enter.
Skip this if
- You need an official emergency alert or life-safety instruction.
- You need a certified professional forecast instead of a calculator estimate.