Horsepower Equations Calculator

Automobile Car Truck Design Formulas

Solving for rotating horsepower.

torque
speed (rpm)

Conversions:

torque
= 0
= 0
pound-foot
speed (rpm)
= 0
= 0
revolution/minute

horsepower (hp)
= NOT CALCULATED

Other Units:

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Select to solve for a different unknown
 Engine horsepower estimate using quarter mile elapsed timeIncludes plot and graph
rotating horsepower
 Rotating horsepower Torque Speed - revolutions per minute (rpm)
estimate engine or motor horse power for cars, trucks and motorcycles
 Estimate of engine horsepower after a quarter mile run using the trap speed method. Determine the increase in engine horsepower when an after market modification, race or performance part has been installed with trap speed. Calculate engine horsepower after a quarter mile run using the ET method. Compute estimated increase in engine horsepower when an after market, racing upgrade or performance part has been installed with ET. Dyno correction factor. Factor corrects horsepower for normally aspirated internal combustion engine to a standard humidity, pressure and temperature after dynamometer measurement. Calculate a vehicles power to weight ratio. Acceleration is related to the ratio.

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By Jimmy Raymond

Contact: aj@ajdesigner.com