Density Altitude Calculator
This calculator is designed to give a value for a calculated density
altitude, based on data entered. It determines and indicates how the
air density is affected by the temperature and water content of the
air. On a hot day, or at high altitude, or on a moist day, the air is
less dense. A reduction in air density reduces the engine horsepower.
Density altitude is defined as the pressure altitude corrected for the
effects of temperature and humidity. Density altitude affects engine
horsepower of a normally aspirated engine. A reduction in air density
reduces the amount of oxygen available for combustion and therefore
reduces the engine horsepower and torque. The term station is the designation
for the vertical point that you take your measurements; vertical meaning
above (or below) sea level. The absolute air pressure is the calculated
air pressure, but not corrected for altitude.
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