Speedometer Gear Calculator

Speedometer Gear Calculator

Speedometer Gears

This calculator is a useful tool that will do the math to help you figure out the gears that are needed to make your speedometer work correctly.


  • Drive Gear Teeth - The Number of teeth for the transmission
  • Rear End - Rear Gear Ratio (3.89, 3.08, 4.11, etc.)
  • Tire Height - Please use Inches when measuring
  • Speedo Revolutions Per Mile - The number of RPM's the speedometer needs to turn at 60mph

Speedometer Gear Calculator
Drive Gear Teeth
Rear End Gear Ratio
Tire Height (Inches)
Speedo Revs/Mile
Speedometer Gear
Speedometer Gear Teeth

700R4 Speedo Gear Types
Shop Speedo Gears

How To Videos:


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