Automotive & Racing
Gear Ratio & Speed Calculator
Ultimate Transmission, RPM & Speed Engineering Tool
Calculate vehicle speed, engine RPM, gear ratio, final drive & tire sizes.
App Screenshots & Interface
Explore key screens and features of Gear Ratio & Speed Calculator
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Gear Matrix Table
Visualize theoretical speeds across every gear from 1,000 to 10,000 RPM at a glance.
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Tire Dimension Conversion
Support for both metric radial and imperial flotation off-road tire sizes.
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Side-by-Side Comparison
Directly compare gear ratio and tire size changes against stock factory baselines.
Key Features
- •RPM to Speed Calculator: Accurately calculate vehicle speed from engine RPM, gear ratio, and tire size.
- •Speed to RPM Calculator: Determine the exact RPM required for target cruising or highway speeds.
- •Gear Speed Matrix Table: Full-spectrum speed table across all gears and RPM intervals.
- •Tire Size Calculator: Metric (e.g. 265/70R17) and Inch flotation (e.g. 33x12.50R17) diameter conversions.
- •Setup Comparison: Side-by-side comparison for tire upgrades and ring & pinion gear changes.
- •Vehicle Garage Profiles: Save and switch between multiple car configurations instantly.
- •Unit Support: Seamless toggle between Metric (km/h, mm) and Imperial (mph, inches).
About the App
Gear Ratio & Speed Calculator is the ultimate automotive engineering tool for car enthusiasts, track racers, off-road builders, and gearheads.
Calculate precise relationships between engine RPM, vehicle speed, transmission gear ratios, final drive ratios, and tire dimensions.
DeveloperDomiLabs
Support Emailkevin85.oh@gmail.com
Download Gear Ratio & Speed Calculator Today
Install the app for free on Android and get fast, reliable calculations anytime, anywhere.