As You Go Thru Life... DO A WHEELIE !!!




Todays date is 12/12/2024

Gearing Calculator


Calculate how far off your speedometer is with your new tire size. This info will only approximate your corrected speed and depends on the accuracy of tire size diameters (assumimg nothing but tire size has changed).

 Speedo converter
Original Tire Diameter:   
New Tire Diameter:   
Speedometer Reading (MPH): 
Input you Original and New Tire Diameter and Speedometer Reading please


This calculator will get you the effective ratio from the new tire size. Enter the values on the left and press Calculate.

 Find new Effective Gear Ratio with new tire size
New Tire Diameter:   
Original Tire Diameter:   
Current Gear Ratio: 
Input All Data Reading please


This calculator will get you back to a ratio that's closer to your original RPM range. Enter the values on the left and press Calculate.

 Find new Equivalent Gear Ratio with new tire size
New Tire Diameter:   
Original Tire Diameter:   
Current Gear Ratio: 
Input All Data Reading please


This Calculator will get the tire diameter of metric tires that. For example a 265/75R16 would be around 31.6 inches tall.
Enter the numbers into this form in the order you read them from the tire and press Compute.

  Convert P-Metric tire to Tire Diameter inches 
Example: 195/75R15  
/ R
Input All Data Reading please




Back to Calculators

Index






Turbocharging Performance Handbook

Turbo: Real-World High-Performance Turbocharger Systems

Race Car Engineering & Mechanics

Race Car Vehicle Dynamics

Street Turbocharging

Alison Balter's Mastering Microsoft Office Access 2003

Access 2003 Bible

D-Link DP-300U 10/100TX 1-USB Port 2-Parallel Port Print Server

HP Wireless G Print Server

Writing Excel Macros with VBA

Linksys PSUS4 PrintServer for USB with 4 Port Switch

HP Wireless Printing Upgrade Kit

IOGEAR USB 2.0 Print Server, 1-Port

Xantrex Technologies 851-0400 XPower Plus 400-Watt Inverter

Home Wind Turbine 600w/12V - Small Wind Generators with solar/wind output