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| North American Grand Cherokee Association | ||
| Your one stop source for Jeep Grand Cherokee Information | ||
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NAGCA's Grand Calculators
Here are a few calculators that may be useful in deciding tire size, gear ratios, and other calculations.
Speedometer - Gear Ratio - Crawl Gear - MPH - RPM - Tire 1 - Tire 2
Put your tire sizes in based on inches and this calculator will give you the approximate real time speed.
Use this calculator to determine what gear ratio you should be using with your new tire size.
Find your low-low-low gear ratio, your "crawl ratio". You will need to do some research to determine your transfer case and transmission ratios first. If someone has this information we would like to post it here in the Grand Tech page at NAGCA. grandtech@nagca.com
Here is another way of finding out how fast you are going
RPM Calculator
Simple Metric Converter
More Refined Metric Converter
Enter tire width, sidewall and wheel (225/75R15 width=265 sidewall=75 wheel=15)
If you have a calculator that would be
useful on this page please submit it to
grandtech@nagca.com
*These calculators created by Mark Medina - www.4Lo.com
Send comments to grandtech@nagca.com
North American Grand Cherokee Association
www.nagca.com
Copyright © 2006 by NAGCA All rights reserved.