Relative Horsepower Calculator
Relative Humidity Factors

Enter Current Air Temperature (OAT) Degrees F
Enter Ambient Barometric Pressure Inches Hg
Enter Ambient Relative Humidity %
Enter Physical Or Pressure Altitude Feet

Calculated Relative Horsepower To Rated %
Calculated Dynamometer Correction Factor  
Calculated Air Pressure Inches Hg
Calculated Vapor Pressure Inches Hg