[SinCity R/T]

Here's a handy website page I use a lot to determine the diameter, width, etc. of tires. It's nice to be able to compare up to 5 sizes at one time so you can see the differences side by side.

http://www.1010tires.com/TireSizeCalculator.asp

If you know of any other good calculators please post them up.

 

[Tanky]

Maybe this one, if ya care:

http://www.dakota-truck.net/TIRECALC/tirecalc.html

 

[dakota g33k]

yeah, that's the one i used the most.

and here's another http://www.miata.net/garage/tirecalc.html

 

[BradleyGT]

The Revs / mile numbers are wrong on this one:

http://www.1010tires.com/TireSizeCalculator.asp

 

[DakWithCheese]

I like the one that gives you your speedometer error. course, for $40, I could just go get it calibrated at the dealer.

 

[cdaniel525]

I found this one to be good...
www.f-body.org/gears

 

[hskrRT]

Maybe this one, if ya care:

http://www.dakota-truck.net/TIRECALC/tirecalc.html

That's the only one I use.

 

[GoFastGray]

yeah, that's the one i used the most.

and here's another http://www.miata.net/garage/tirecalc.html

thats my favorite one :mullet: (also known as eunos.com/tirecalc )

just found the 101tires the other day... that one is really good too

 

[pickle R/T]

I like this one:
http://http://www.discounttire.com/dtcs/infoTireMath.dos

 

[MGM]

Tire Size/Speed

Here's a handy website page I use a lot to determine the diameter, width, etc. of tires. It's nice to be able to compare up to 5 sizes at one time so you can see the differences side by side.

http://www.1010tires.com/TireSizeCalculator.asp

If you know of any other good calculators please post them up.

The used Dakota that I just purchased has P255 tires on it and the book says it comes with P245.

How much difference does that make in speedometer and is it this much fast or slow.

 

[Rebel13]

This is another really good one: http://www.wheelsmaster.com/rt_specs.jsp

 

[MGM]

Found This

The used Dakota that I just purchased has P255 tires on it and the book says it comes with P245.

How much difference does that make in speedometer and is it this much fast or slow.

Found this after I asked the question

http://www.net-comber.com/tirecalc1.html

 

[01RT]

My stock size was 265/70/17, i went to 285/50/20, just reprogrammed the computer to accept new tire size and speedo is dead on the money

 

[burganb]

I like the one that gives you your speedometer error. course, for $40, I could just go get it calibrated at the dealer.

You know you can do that with your Superchip Tuner, right? You just have to know the tires diameter in inches.

 

[Craigslue]

This is what I like using. Also lets you do the wheel offsets and compare the difference between 2 different wheel tire combos graphically.

http://www.rimsntires.com/specs.jsp