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Diameter Comparison of Light Truck Tire Sizes


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Tire diameters provided are typical for the tire size. However different tread designs and molded tread depths can result in slightly different overall tire diameters.

Approx. Tire Diameter
(in Inches)
P-Metric and European MetricLT-MetricLight Truck
82-series and 80-series75-series and 70-series65-series and 60-series55-series and lower
85-series and 80-series75-series and 70-series65-series and 60-series55-series and lower
FlotationNumeric
42







42x14.50R17LT
40







40x13.50R20LT








40x13.50R18LT








40x13.50R17LT
38-1/2







38.5x14.50R20LT
38




LT395/70R16LT395/65R18
38x14.00R24LT








38x15.50R20LT








38x15.50R18LT








38x15.50R15LT
37



LT325/80R16


37x14.00R24LT








37x13.50R22LT








37x13.50R20LT








37x13.50R18LT








37x13.50R17LT








37x12.50R17LT
36





LT375/60R18
36x15.50R20LT








36x15.50R15LT
35




LT305/70R18LT285/65R20
35x13.50R20LT





LT285/75R18LT325/65R18


34-1/2




LT315/70R17LT275/65R20
35X12.50R20LT





LT315/75R16

35x12.50R18LT








35x12.50R17LT








35X12.50R15LT
34




LT305/70R17



33-1/2



LT255/85R16LT275/70R18LT285/60R20LT305/55R20

33




LT285/70R17LT325/60R18LT325/50R2033x12.50R20LT





LT305/70R16LT305/65R17LT375/50R1833x12.50R18LT





LT285/75R16LT295/65R18LT375/55R1633x12.50R17LT








33x15.50R15LT
32-1/2




LT275/70R17LT305/60R18LT375/55R1633X12.50R16.5LT





LT255/75R17LT275/65R18







LT315/70R15

33X12.50R15LT
32




LT265/70R17
LT345/55R17






LT245/75R17








LT265/75R16



31-1/2
265/70R17285/60R18
LT235/85R16LT265/75R16

32X11.50R15LT7.50R16LT

265/75R16







31
275/70R16
285/55R18LT215/85R16LT245/70R17
LT345/55R16






LT245/75R16



30-1/2
265/70R16285/60R17

LT285/70R15LT325/60R15
31X10.50R16.5LT9.50R16.5LT

265/75R15265/65R17




31X11.50R15LT








31X10.50R15LT
30
255/70R16275/60R17








255/65R17






29-1/2
245/70R16265/60R17

LT225/75R16LT285/60R16LT315/55R1630X9.50R15LT8.75R16.5LT

265/70R15245/65R17





7.00R15LT
29205R16235/70R16255/60R17255/55R18
LT235/75R15



205/80R16255/70R15255/65R16







235/75R15







28-1/2
225/70R16


LT225/75R15

29X9.50R15LT8.00R16.5LT

245/70R15








225/75R15







28
215/70R16
275/60R15255/55R17

LT245/65R15


27-1/2
225/70R15


LT215/75R15




215/75R15







27
205/75R15255/60R15255/50R17
LT205/75R15





225/60R16305/50R15







215/65R16






26-1/2
225/70R14245/60R15295/50R15
LT195/75R15

27X8.50R14LT

195/75R15







26185R14195/70R15235/60R15







215/70R14215/65R15







205/75R14







25-1/2
205/70R14225/60R15







195/75R14








Verify tire specifications and dimensions of tires by viewing SPECS page of tires you are interested in. While this chart can't guarantee a specific tire will fit your vehicle, it can give you an idea of the available tire sizes with the same approximate overall diameter. Make sure to see Light Truck Fitment Formulas for more info on important things to consider when selecting truck tire sizes. Always verify that the load capacity of the new tire is sufficient for your vehicle.

The approximate width of metric sized tires can be converted into inches by dividing the branded Section Width in millimeters by 25.4; for example LT285/60R16 285 ÷ 25.4 = 11.2"

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