18x8.5 wheels tire size

Wondering to know what is the best tire size for 18x8.5" rims? Many car owners face this tire sizing issue when it comes to finding the right tire size for 18x8.5 rims while the reverse may be also true. Wheelssize.com is here to help you explore the correct tire size for 18x8.5 rims comparing factory vs custom setups as some people want to play it on the safe side while car tuners love to mount aftermarket rollers.

Another common question asked is what would be the biggest tire size you can run on the aftermarket 18x8.5" rims. In our database you can find answers to all these questions as we have stock wheel set-ups recommended by the manufacturers and custom tire sizes fitting on 18x8.5 rims with pics from car enthusiasts that chose to go beyond the factory specs.

For those who had their ride lowered or want to put stretched tires on 18x8.5 rims, we have real life examples from car tuners with photos of the wheel setups. In this case the right tire size for 18x8.5 wheels means the tires do not rub against the suspension.

Possible tire sizes for a 18x8.5 rim

Tire size Wheel diameter Projects
P 145/40 R18 22.6" 1%
P 215/30 R18 23.1" 1%
P 225/30 R18 23.3" 1%
P 205/35 R18 23.7" 1%
P 215/35 R18 23.9" 6%
P 225/35 R18 24.2" 3%
P 235/35 R18 24.5" 1%
P 205/40 R18 24.5" 2%
P 285/30 R18 24.7" 1%
P 245/35 R18 24.8" 4%
P 215/40 R18 24.8" 9%
P 255/35 R18 25.0" 4%
P 225/40 R18 25.1" 32%
P 265/35 R18 25.3" 1%
P 235/40 R18 25.4" 19%
P 275/35 R18 25.6" 1%
P 215/45 R18 25.6" 1%
P 245/40 R18 25.7" 15%
P 225/45 R18 26.0" 3%
P 255/40 R18 26.0" 1%
P 295/35 R18 26.1" 1%
P 235/45 R18 26.3" 1%
P 240/45 R18 26.5" 1%
P 245/45 R18 26.7" 1%
P 235/50 R18 27.3" 1%
P 235/55 R18 28.2" 1%
P 255/55 R18 29.0" 1%
P 235/60 R18 29.1" 1%
LT 275/70 R18 33.2" 1%

Recommended P tire sizes that fit 18x8.5 rim


%
Width
35 40 45 50 55 60 65 70
215 29 41
225 11 152 12
235 3 95 4 2 1 1
245 18 73 5
255 19 3 1
265
275
285
305

Recommended tire sizes are marked with orange color.

Square boxes with numbers (12) stand for custom car projects. Click the number to browse them.

Recommended LT tire sizes that fit 18x8.5 rim


%
Width
65 70
275 2
285

Recommended tire sizes are marked with orange color.

Square boxes with numbers (12) stand for custom car projects. Click the number to browse them.

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