Slot Car Speed Calculator
Calculate actual and scale speed of slot cars from motor RPM, tire diameter, gear ratio, and scale.
Inputs
Results
Actual Speed (mph)
15.62
Scale Speed (mph)
499.8
Tire Surface Speed (mph)15.6
Laps/Min (30ft track)45.8
How to Use This Calculator
- Enter Motor RPM, Tire Diameter (mm), and Gear Ratio.
- Set Scale, HO (1:87), and 1:32.
- Adjust 1:24 as needed.
- Review Actual Speed (mph) and Scale Speed (mph).
- Use Tire Surface Speed (mph) and Laps/Min (30ft track) to inform your decision.
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