Tire Height Calculator

[87TTopGT]

I was trying to figure impact of treadwidth and aspect ratio on tire height when I was buying my DR's, and came up with this-

ftp://[email protected]/Mustang tire size calculator.xls

Could anyone let me know if this is accurate, or were my assumptions wrong?

 

[TheUser]

the link was bad, but you can figure tire height by adding sidewall to rim size...for example 235/50/R15's would be 235*.5=117.5mm (the .5 is because the middle number-50-is the percentage of the first number, or section width, and .5 is 50%). There are 25.4mm in an inch so 117.5/25.4=4.63 on each side, so 4.63*2=9.26+15(rim size)=24.26 inch tide height...cool?

 

[87TTopGT]

Yeah, that is what I used- weird about the link, it opened for me.

 

[super302]

what 'theuser' said....

 

[JTGT]

You can go to this link and save yourself all the calculations.

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

 

[HISSIN50]

it is not difficult (aspect ratio is the height and is a percentage of the tire width).

do note that different tires can vary quite a bit. the lower the profile, the less sidewall bulge there is, and this affects the physical measurements. try hitting a tire shop with a ruler - i bet you find that tires of the same numeric size measure out differently.

Yount knows a ton about this stuff (his bro is in the tire business). listen to him (i bet he posts in the morning). good luck.

 

[stangracer79]

I know a tire height calcuator a tape measurer.

 

[87TTopGT]

You can go to this link and save yourself all the calculations.

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

Good one! Bookmarking that puppy!