RPM & pulse-frequency calculator
Convert shaft speed into pulse and edge-count frequency, or recover RPM from an observed count rate.
Your result
ON YOUR DEVICEEnter your inputs and calculate to see the result.
Distinguish pulses from counted edges.
Pulses per revolution means complete cycles on one sensor channel, measured at the shaft in question. Count frequency includes your edge or quadrature multiplier. At zero speed there is no periodic pulse train, so pulse period is shown as static.
Pulse frequency = RPM × pulse cycles per revolution / 60
Count frequency = pulse frequency × count multiplier