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PSCR Slot Car RPM Calculator

RPM & Top Speed Calculator

Motor rated RPM

Example: 21,700 RPM @ 12V

Rating voltage (V)

Use adjustable track voltage

Default is 12V (unchecked = locked)

Track / set voltage (V)

Pinion teeth

Crown / spur teeth

Gear ratio—

Wheel diameter (mm)

Or pick a common size

Calculated motor RPM—

Wheel RPM—

Top speed— km/h