NOTE: The Results of the Calculator are not Guaranteed
Blue Boxes indicate Calculated Values.

Single Speed Gearbox
Two Speed Gearbox

Input RPM: RPM
Wheel Diameter: Inches
Efficiency: %

Common Reductions: Input Tooth Count : Output Tooth Count
Common Reduction 1: :
Common Reduction 2: :
Common Reduction 3: :
Total Common Reduction: :

High Gear Reductions: Input Tooth Count : Output Tooth Count
High Gear Reduction 1: :
High Gear Reduction 2: :
Total High Gear Reduction: :

Estimated High Gear Speed:ft/sec

Low Gear Reductions: Input Tooth Count : Output Tooth Count
Low Gear Reduction 1: :
Low Gear Reduction 2: :
Total Low Gear Reduction: :

Estimated Low Gear Speed: ft/sec