Pivotal Altitude Calculator

This calculator estimates altitude based on barometric pressure and temperature, commonly used in aviation for flight planning and safety assessments.

Input Parameters

Calculation Results

Calculation Formula

Altitude (ft) = 145366.45 * [(1 - (P / 1013.25))^0.5 - 1] / (L)

Where:
P = Barometric pressure in hPa
L = Temperature lapse rate (0.0065 m/°C)

Result

Estimated Altitude: -- ft

Pivotal Altitude Calculator Calculator Usage Guide

Learn how to use the Pivotal Altitude Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the current barometric pressure in hPa. This is typically available from weather reports or on your aircraft's altimeter.
  2. Enter the current outside temperature in °C. This is usually obtained from your aircraft's temperature sensors.
  3. Click the "Calculate" button to compute the estimated altitude.
  4. The calculator will display the estimated altitude in feet based on the barometric pressure and temperature.

Understanding the Formula

The calculator uses the barometric formula to estimate altitude. The formula is based on the relationship between air pressure, temperature, and altitude:

Altitude (ft) = 145366.45 * [(1 - (P / 1013.25))^0.5 - 1] / (L)

Where:

  • P = Barometric pressure in hPa (standard sea level pressure is 1013.25 hPa)
  • L = Temperature lapse rate (0.0065 m/°C, the standard rate of temperature decrease with altitude)

Important Notes

This calculator provides an estimated altitude based on standard atmospheric conditions. Actual altitudes may vary due to factors such as non-standard atmospheric conditions, local weather patterns, and instrument errors.

For precise altitude calculations, especially in aviation applications, always refer to your aircraft's instruments and consult with aviation authorities.