Here's the best tire size calculator

I've used a couple other tire size calculators online,but this one is the most detailed I've come across. Shows you a visual difference in size and also does a speedometer calculation.

That is a good one. Nice find.

when my speedo reads 60 i am actually going 73.3 miles an hour... i guessi better watch out... or dont go over 60 on the highway......lol

I just punched in "tire size chart" on Google and that was like the first link.

I was looking to see the difference from 225/55/45 to 225/45/55. It's almost time to put the summer tires on the car and I cant afford new tires,but I have the 16s on the silverado rims in my basement...

i found that about 4 years ago. guys on the impala ss forums linked to it thru capriceSS.com i always use that calculator.

Holy shit!!!!!!, 225/45/55's eh? Demz the biggest pimpin rims I ever seen

ive used it