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Calculate ET Change From Weight Change
Back to Calculators
These equations are for recreation only.
HP Correction Factor Calculator (use to find current conditions)
This calculator uses the Motorsports Standard Atmosphere (MSA). (Not ISA - International Standard Atmosphere)
Grains - Grains of water vapor per pound of dry air
The HP Correction is a better determination of ET than the DA (Density Altitude).
I have included them for your benefit.