Piston Speed Calculator

Calculate mean piston speed from stroke and RPM

Engine Parameters

Measurement Unit

Stroke (inches)

Engine RPM

Formula

Mean Piston Speed = 2 × Stroke × RPM

Mean Piston Speed

3480 FPM

Conservative - Long engine life

Speed Conversions

Feet per Minute3480 FPM

Meters per Second17.68 m/s

Miles per Hour39.5 MPH

Safe RPM Limits

Max RPM @ 4000 FPM6897 RPM

Max RPM @ 4500 FPM7759 RPM

Max RPM @ 5000 FPM8621 RPM