link to calculate tire sizes

[larryn2o]

here's a link that will calculate tire size and road speed.
Larry

http://www.euroshina.com.ua/calc.php?lng=en

[fremontminitrucks]

nice find!

[myhijet]

Yes, thanks. Now I don't have to use that stinikin math.

[Acerguy]

Thanks for posting it, Larry! Hey, could any of you guys post what the diameter of the typical, stock 12" Kei truck tire is?

[myhijet]

My 97 hijet has Bridegstone 145r12 tires. The circumfrence is right at 66 inches even. That works out to a 145 80 r12. The tire is just over 21" in diameter

[larryn2o]

tires that don't have a ratio in the size tend to be 100% for bias ply and 90% for radial. it can vary between different manufactures . i've seen 3 different tire sizes come out of the same mold. with the only change being the name plate. i just take a tape to them & go from there.

[ddimports]

i like this link better you do different sizes at once

http://www.1010tires.com/TireSizeCalculator.asp?action=submit&reset=yes