Holy Rollerz Christian Car Club





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Auto Horsepower-Speed-Quarter Mile ET Calculators

Use the calculators below to estimate your various vehicle ratings.

The calculators below, although not perfectly accurate, can help you estimate many aspects of automotive performance, including your horsepower, estimated quarter mile times and even how much horsepower you can gain from supercharging or turbocharging your vehicle.

Estimate Horsepower from Quarter-Mile MPH

   
Vehicle Weight with Driver lbs
MPH in quarter mile drag mph
 
   
Estimated - HP @ Flywheel:
   



Approx Horsepower Gain from Forced-Induction

   
Blower Pressure PSI
Present Engine HorsePower (@ Flywheel)
 
   
Estimated -- New HP
This calculation assumes no added temperature from compressing the air.

Estimate Horsepower from Quarter-Mile ET

   
Vehicle Weight with Driver lbs
 Quarter-Mile Time (ET) s
 
   
Estimated - HP @ Flywheel
   

Horsepower Needed for Quarter-Mile

   
Vehicle Weight with Driver lbs
Desired Quarter-Mile Time (ET)
 
   
Flywheel HP Needed
   

Estimate Quarter-Mile ET from horsepower

   
Vehicle Weight with Driver lbs
HorsePower @ Flywheel
 
   
Estimated Quarter-Mile ET s
   

Estimate Quarter-Mile ET from MPH

   
MPH in quarter mile drag mph
 
   
Estimated Quarter-Mile ET
   

Estimate Quarter-Mile MPH from Horsepower

   
Vehicle Weight with Driver lbs
HorsePower (@ Flywheel)
 
Speed at end of Quarter-Mile  
MPH
Km/H