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Categories

Calculators

Tire Height Calculator

Tire Width Tire Aspect Ratio Wheel Size
Tire Height Tire Circumference

Calculate RPM for given Speed(mph), Rear Gear Ratio and Trans Gear Ratio

MPH Tire Diameter Rear Gear Ratio Trans Gear Ratio
:1 :1
RPM

Calculate Gear Ratio

Ring Gear Tooth Count Pinion Gear Tooth Count Gear Ratio

Calculate Engine Displacement

Bore Size Stroke Length # Cylinders Units Entered
Inches
Millimeters
Engine Displacement: Cubic Inches
Cubic Centimeters

Cubic Inches to Liters Conversion

Cubic Inches Liters

Calculate Horsepower

Torque RPM Horsepower

Transmission Ratio RPM

Enter R&P Ratio, Tire Height, Speed (mph), and Transmission Ratio, then click Solve to calculate RPM

R&P Ratio Tire Height Speed Trans Ratio
:1 :1
RPM: