Enter the wheel horsepower and select the drivetrain of the car to determine the brake HP (crank HP) from WHP. WHP to HP Calculator Enter either WHP or engine HP, choose the drivetrain setup, and calculate the missing horsepower along with estimated drivetrain losses. WHP (Wheel Horsepower) Drivetrain FWD Manual (10% loss)FWD Automatic (12% loss)RWD … Continue reading WHP to HP (BHP/Crank HP) Calculator