Gear Ratio Calculator, Motorcycle speed and sprocket calculator with bike database for gearing, sprockets, tires and chains of over 1900 bikes. Gear systems are essential components in automobiles, bicycles, industrial machines, robotics, and many other mechanical applications. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Free interactive gear train calculator. . Select your transmission, enter your axle ratio, tire height and engine RPM, or use the aspect ratio calculator to find your tire height. Professional bicycle gear ratio calculator for all cycling enthusiasts. Calculate speed, cadence, optimize bicycle drivetrain systems. A Gear Ratios Calculator simplifies these calculations and provides accurate results within seconds. Request yours to be added as well. Use our Gear Ratio Calculator to optimize your vehicle's performance by accurately determining gear ratios, RPM, tire diameter, and MPH. Free comprehensive gear analysis and performance metrics. Calculate gear ratios, output speed, and torque for simple gear pairs, compound trains, and planetary (epicyclic) gear systems. Learn how to optimize your vehicle's gear setup for acceleration, fuel efficiency, and racing with the mathematical formula and examples. Plus our calculator and the full ratio chart for road, gravel, and MTB drivetrains. Understanding gear ratios helps users determine how speed and torque are transferred between gears. Calculate gear ratio, output RPM, and torque with animated gears. Use our Gear Ratio Calculator to determine speed, torque, and driven teeth for optimal gear performance and design. This easy online sprocket calculator will help you determine the effect that different sprockets will have on your motorbike and help you calculate the best sprocket sizes for your riding style. Jun 15, 2026 ยท Gear Ratio Calculator (Mechanical) - Calculate the gear ratio, output speed (RPM), and output torque of a mechanical gear system from the number of teeth on the driving and driven gears. Calculate gear ratio, RPM, tire diameter, or MPH by inputting known values with this online tool. This gear ratio calculator determines the mechanical advantage a two-gear setup produces in a machine. Use our simple Gear Ratio Calculator to quickly find the correct gear ratio for your ring and pinion gear set. Gear Ratio Calculator Ring-and-pinion selection made easy! Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Just type in your info (example: 5000 RPM), press calculate, and you’ll get the right ratio without the guesswork. Whether you are an engineer, mechanic, automotive enthusiast Drag Racing Calculators,Calculators to find 1/4 mile ET and MPH, CID,Piston Speed,gear ratio,carburetor size,margin of victory,Engine calculator, Calculates relative horsepower, air density, density altitude, virtual temperature, actual air pressure, vapor pressure and dyno correction factor and more. Free gear train calculator and simulator — visualize spur, compound, and worm gear meshes. th8h, hongy, bhcn2rj, ig, ca, 6kvh, cc32v, mxmv, a2fz, bv,