Showing 1–20 of 1,000 ranked alternatives.
WILL PLANT, Y.K.
Calculate gear ratios and track gear settings
Calculate car gear ratios using spur and pinion gear counts and secondary gear ratios. Input values to determine final drive ratio. Compare low and high gear settings for acceleration, speed, motor load, and battery life.
Jason Johnson
Calculate , store setups, add notes
Calculates , RPM, final drive ratio, and rollout in inches and millimeters. Stores setups and notes. Allows emailing of data for record keeping. Input pinion and spur sizes for calculations.
David Mills
Radio control car ratio calculator tool.
The app calculates final drive ratio and rollout for radio control cars. Users can select cars by manufacturer and model, inputting pinion and spur gear sizes.
Robert Sayman
Calculate vehicle speed and ratios easily.
The app calculates gear ratio, driveline ratio, and vehicle speed using US and Metric units. It supports multiple input methods for tire size and saves calculation history for quick reference.
ABT Co Ltd
Calculate ratios and visualize speed-cadence graphs
Calculate ratios for bicycles with external gearboxes. Input chainwheel, sprocket, and tire sizes to generate speed-cadence and graphs. Simulate optimal ratios by toggling display settings for outer and inner gears.
Frode Rorvik
Calculate pitch, gear ratio, RPM, and speed
Calculate pitch, gear ratio, RPM, slip, and speed by inputting any four variables. Toggle to select the parameter to compute. Provides precise mechanical and propulsion-related calculations.
ABT Co Ltd
Calculate bike gear ratios and speed.
The app calculates gear ratios for road bikes and mountain bikes. It simulates optimal gear ratios by displaying graphs of gear ratio and speed-cadence, allowing users to choose replacement parts.
Heng Jia Liang
Calculate teeth and simulate systems
Calculate teeth and speed for systems using provided formulas. Input values to determine sun, planet, and ring teeth. Simulate interactions and preview system behavior before 3D printing.
Matt Herz
Calculate gears for your bike
Calculate ratios for chainrings 44–70 teeth and cogs 8–20 teeth. Determine speed and cadence based on selection. Find the next higher or lower available in your current setup. Sync data between iPhone and Apple Watch.
Degree3, Inc.
Estimate RC car top
Calculate RC car top using gear teeth, motor details, and battery info. Input data to get estimates. Record estimates for different setups. Compare with actual measured by gun. Save and review recorded data.
Heng Jia Liang
Simulate gears, calculate ratios, track speed
Calculate ratios, torque, and speed for train systems. Input teeth numbers and speeds to determine outputs. Simulate train operation instantly. Preview system functionality before 3D printing.
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