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SPECIFIC SPEED CALCULATOR: Use the calculator below to determine Specific Speed: Specific Speed = RPM x GPM ^.5 / Head ^.75 RPM = Revolutions per minute GPM = Gallon per minute HEAD = Feet Enter Data:  RPM  GPM  HEAD    Answer:  Specific Speed Important Disclaimer: This calculator is provided for general information and illustration purposes only; the results are to be used only as estimates and are not intended as definitive advice or as a resource applicable to any specific circumstance and should not be relied upon or used as such. Peerless Pump, Inc. cannot guarantee that you will achieve proper results without verifying your measurements and assumptions. For specific advice regarding your project, you should engage the services of an associate at Peerless Pump, Inc. >> Home