does anyonre know a website that i can put the size of rims and it will tell me what size of tires i should use i plan to buy 20 or 22

 

www.tirerack.com ?

when you go above stock.. sometimes it is a learning curve... rub or not to rub.. some people dont mind rolling up fenders

 

www.tires.com

 

www.tirerack.com www.discounttiredirect.com www.sears.com www.wheelsnext.com....

 

IMO, this is one of the better calculators if you're looking at rims of different size and offset from stock:

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

If you're just looking at different tire size options for a specific wheel diameter, these are good too:

http://www.discounttiredirect.com/di...foTireMath.jsp

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

http://www.miata.net/garage/tirecalc.html