Gear Ratio & Speed Calculator
Calculate max speed per gear
Calculate top speeds for each gear based on ratios and tyre size.
Tyre Size
Drivetrain
Gear Ratios
G1
G2
G3
G4
G5
G6
Max Speed per Gear @ 7000 RPM
Gear 157.4 km/h
Gear 2106.8 km/h
Gear 3158.9 km/h
Gear 4222.5 km/h
Gear 5268.6 km/h
Enter gear ratios to see speeds.
Understand Your Gearing & Speed Limits
Our Gear Ratio Calculator allows you to calculate the theoretical top speed of your vehicle in every gear. By adjusting variables like Final Drive Ratio, Redline RPM, and Tire Size, you can see how changes affect your car's behavior.
Perfect for track days or highway cruising optimization. Toggle between km/h and mph to visualize speed limits across your entire rev range. This tool helps you choose the right transmission or differential swap for your needs.